Complete List of Symptoms
Browse 656 symptoms and explore the conditions each one is associated with in peer-reviewed medical literature.
656 symptoms shown. Clear filters.
Abdomen Tender to Touch
Pain or discomfort when the abdomen is pressed, which can be a sign of inflammation or infection....
Abdominal Fat
Excess fat concentrated around the abdomen, which is a component of metabolic syndrome....
Abdominal distention
Distention of the abdomen....
Abdominal pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) and perceived to o...
Abdominal wall muscle weakness
Decreased strength of the abdominal musculature....
Abnormal Vaginal Discharge
Discharge from the vagina that differs in color, odor, or amount from normal, which can be a sign of infection....
Abnormal bleeding
An abnormal susceptibility to bleeding, often referred to as a bleeding diathesis. A bleeding diathesis may be related t...
Abnormal fear-induced behavior
An abnormal fear-induced behavior includes observable actions. This behavior is characterized by abnormal responses to f...
Abnormal onset of bleeding
Information about Abnormal onset of bleeding....
Abnormal umbilical stump bleeding
Abnormal bleeding of the umbilical stump following separation of the cord at approximately 7-10 days after birth....
Abnormality of the philtrum
An abnormality of the philtrum....
Acholic stools
Clay colored stools lacking bile pigment....
Acne
A skin condition in which there is an increase in sebum secretion by the pilosebaceous apparatus associated with open co...
Action tremor
A tremor present when the limbs are active, either when outstretched in a certain position or throughout a voluntary mov...
Adult onset sensorineural hearing impairment
The presence of sensorineural deafness with late onset....
Allergic rhinitis
It is characterized by one or more symptoms including sneezing, itching, nasal congestion, and rhinorrhea....
Alopecia
A noncongenital process of hair loss, which may progress to partial or complete baldness....
Alopecia of scalp
Information about Alopecia of scalp....
Anal Itching
Itching around the anus, which can be caused by hemorrhoids, skin irritation, or infections....
Anal Pain
Pain around the anus or rectum, which can be caused by hemorrhoids, fissures, or other conditions....
Anemia
A condition of low red blood cells or hemoglobin, causing fatigue, weakness, and pallor....
Ankle swelling
Information about Ankle swelling....
Ankle weakness
Reduced strength of the muscles that lift or otherwise move the foot at the ankle....
Anxiety
Intense feelings of nervousness, tension, or panic often arise in response to interpersonal stresses. There is worry abo...
Arm Pain
Pain in the arm, which can be caused by injury, nerve compression, or referred pain from the heart....
Arthralgia
Joint pain....
Arthralgia of the hip
Joint pain affecting the hip....
Arthralgia/arthritis
Information about Arthralgia/arthritis....
Asthenia
A state characterized by a feeling of weakness and loss of strength leading to a generalized weakness of the body....
Asymmetric Mole
A mole with uneven shape, which can be a warning sign for melanoma....
Atonic seizure
Atonic seizure is a type of motor seizure characterized by a sudden loss or diminution of muscle tone without apparent p...
Atypical absence seizure
An atypical absence seizure is a type of generalized non-motor (absence) seizure characterized by interruption of ongoin...
Aura
A sensory warning sign, such as visual flashes or zigzag lines, that can occur before a migraine or seizure....
Autonomic erectile dysfunction
Impotence (inability to develop or maintain an erection) resulting from abnormal functioning of the autonomic nervous sy...
Avoidance Behavior
Avoiding people, places, or reminders of a traumatic event, characteristic of PTSD....
Axial muscle weakness
Reduced strength of the axial musculature (i.e., of the muscles of the head and neck, spine, and ribs)....
Back pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the b...
Balance Problems
Difficulty with balance or coordination, which can be related to inner ear, neurological, or musculoskeletal conditions....
Big Toe Pain
Pain and swelling of the big toe joint, which is characteristic of gout....
Bilateral conductive hearing impairment
A bilateral type of conductive hearing impairment....
Bilateral facial palsy
Two-sided or bilateral weakness of the muscles of facial expression and eye closure....
Bilateral sensorineural hearing impairment
A form of sensorineural hearing impairment that affects both ears....
Bilateral tonic-clonic seizure
A bilateral tonic-clonic seizure is a seizure defined by a tonic (bilateral increased tone, lasting seconds to minutes) ...
Bilateral tonic-clonic seizure on awakening
Bilateral tonic-clonic seizure of either generalized or focal onset occurring on or soon after wakening (typically withi...
Bilateral tonic-clonic seizure with focal onset
A bilateral tonic-clonic seizure with focal onset is a focal-onset seizure which progresses into a bilateral tonic-cloni...
Bipolar affective disorder
Bipolar disorder is an illness of mood characterized by alternating episodes of elevated and depressed moods, which are ...
Black Stools
Dark, tarry stools that usually indicate bleeding in the upper digestive tract....
Blackheads and Whiteheads
Clogged pores that appear as blackheads or whiteheads, characteristic of acne....
Bladder Problems
Difficulty controlling urination, which can be related to neurological or urinary conditions....
Bleeding Mole
A mole that bleeds, which can be a warning sign for melanoma and should be evaluated....
Bleeding with minor or no trauma
Significant bleeding or hemorrhage without significant precipitating factor....
Blepharospasm
A focal dystonia that affects the muscles of the eyelids and brow, associated with involuntary recurrent spasm of both e...
Blind Spots
Areas of vision loss or blank spots in the visual field....
Blindness
Blindness is the condition of lacking visual perception defined as a profound reduction in visual perception. On the 6m ...
Blister Rash
A rash with small fluid-filled blisters, characteristic of shingles or other viral infections....
Bloating
A feeling of fullness, pressure, or swelling in the abdomen, often related to gas, digestion, or fluid retention....
Bloody diarrhea
Passage of many stools containing blood....
Blurred vision
Lack of sharpness of vision resulting in the inability to see fine detail....
Bone Fracture
A break in a bone, which can be caused by injury or weakened bones such as in osteoporosis....
Bone Pain
Pain originating in the bones, which can be caused by injury, infection, or other conditions....
Brain fog
Brain fog is a type of transient cognitive dysfunction that comprises a constellation of symptoms that impair intellectu...
Breast Dimpling
Dimpling or puckering of the breast skin, which should be evaluated by a healthcare provider....
Breast Lump
A lump or mass in the breast, which can be benign or require evaluation to rule out cancer....
Breast Pain
Pain or tenderness in the breast, which is commonly related to hormonal changes....
Breast Tenderness
Pain or tenderness in the breasts, which is common with hormonal changes....
Breathing Pauses
Episodes of stopped breathing, which can be central or obstructive in nature....
Breathing Pauses During Sleep
Episodes of paused breathing during sleep, a hallmark of obstructive sleep apnea....
Breathlessness When Lying Flat
Difficulty breathing when lying flat that improves when sitting up, which can be a sign of heart failure....
Brittle Nails
Nails that split, chip, or break easily, which can be related to nutritional deficiencies, thyroid problems, or environm...
Bruising susceptibility
An ecchymosis (bruise) refers to the skin discoloration caused by the escape of blood into the tissues from ruptured blo...
Bulbar palsy
Bulbar weakness (or bulbar palsy) refers to bilateral impairment of function of the lower cranial nerves IX, X, XI and X...
Bulging Eyes
Protrusion of the eyes, most commonly associated with Graves disease and thyroid eye disease....
Bullseye Rash
A circular red rash with a central clearing that spreads outward, characteristic of Lyme disease....
Burning Eyes
A burning or stinging sensation in the eyes, often due to dryness, irritation, or allergens....
Burning Pain
Pain with a burning quality, which can be related to nerve irritation or skin conditions....
Butterfly Rash
A reddish rash across the cheeks and bridge of the nose, characteristic of lupus....
Buttock Pain
Pain in the buttocks, which can be referred from the spine, hip, or sacroiliac joints....
Calf Tenderness
Pain or tenderness in the calf, which can be a sign of a blood clot and should be evaluated promptly....
Central Vision Loss
Loss of central vision while peripheral vision remains, characteristic of macular degeneration....
Cerebral edema
Abnormal accumulation of fluid in the brain....
Cerebral hemorrhage
Hemorrhage into the parenchyma of the brain....
Change in Bowel Habits
A persistent change in the frequency or consistency of bowel movements, which should be evaluated....
Changing Mole
A mole that changes in size, shape, or color, which should be evaluated to rule out skin cancer....
Chest Tightness
A feeling of pressure, squeezing, or tightness in the chest, which can be related to heart, lung, or muscle conditions....
Chest pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the c...
Chills
A sudden sensation of feeling cold....
Chronic Pelvic Pain
Persistent pain in the pelvic region, which can be related to gynecological, urinary, or bowel conditions....
Chronic constipation
Constipation for longer than three months with fewer than 3 bowel movements per week, straining, lumpy or hard stools, a...
Chronic cough
A persistent cough, defined as a cough lasting longer than eight weeks in adults or longer than four weeks in children....
Chronic diarrhea
The presence of chronic diarrhea, which is usually taken to mean diarrhea that has persisted for over 4 weeks....
Chronic fatigue
Subjective feeling of tiredness characterized by a lack of energy and motivation that persists for six months or longer....
Clay-Colored Stool
Pale or clay-colored stools, which can indicate a lack of bile and a possible liver or bile duct problem....
Clonic seizure
A clonic seizure is a type of motor seizure characterized by sustained rhythmic jerking, that is regularly repetitive....
Clubbed Fingertips
Enlargement of the fingertips with curved nails, which can be a sign of chronic lung or heart conditions....
Cluster headache
A type of headache characterized by repeated attacks of unilateral pain lasting 15 to 180 minutes and associated with lo...
Cognitive Impairment
Difficulty with thinking, memory, concentration, or decision-making, which can have many causes....
Cold Feet
Feet that feel cold, which can be related to poor circulation, nerve conditions, or hypothyroidism....
Cold Intolerance
Feeling unusually sensitive to cold temperatures, which can be a sign of a slow metabolism such as hypothyroidism or ane...
Complex febrile seizure
A febrile seizure that has any of the following features: focal semiology (or associated with post-ictal neurologic abno...
Conductive hearing impairment
An abnormality of vibrational conductance of sound to the inner ear leading to impairment of sensory perception of sound...
Confusion
Lack of clarity and coherence of thought, perception, understanding, or action....
Conjunctival hyperemia
Dilatation of the blood vessels of the conjunctiva leading to a red appearance of the sclera....
Constipation
Infrequent or difficult evacuation of feces....
Convulsive Seizure
A seizure involving stiffening followed by rhythmic jerking of the body, which requires medical attention....
Cough
A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation....
Curved Upper Back
An exaggerated forward curve of the upper spine, which can be related to osteoporosis or posture....
Dark urine
An abnormal dark color of the urine....
Darkened Skin
Skin that becomes darker than usual, which can be a sign of hormonal or metabolic conditions....
Daytime Sleepiness
Excessive sleepiness during the day despite getting enough sleep at night, which can be a sign of sleep apnea or other c...
Decreased Need for Sleep
Feeling rested on much less sleep than usual, which can be a feature of mania....
Decreased Urine Output
Urinating less than usual, which can be a sign of dehydration or kidney problems....
Deep Swelling Under Skin
Swelling in the deeper layers of the skin, often around the eyes and lips, which can be a sign of a serious allergic rea...
Deeply set eye
An eye that is more deeply recessed into the plane of the face than is typical....
Dehydration
A lack of sufficient body fluid, causing thirst, dry mouth, dark urine, and fatigue....
Depression
Frequently experiencing feelings of being down, miserable, and/or hopeless; struggling to recover from these moods; havi...
Diaphragmatic weakness
A decrease in the strength of the diaphragm....
Diarrhea
Abnormally increased frequency (usually defined as three or more) loose or watery bowel movements a day....
Difficulty Closing the Eye
The inability to fully close the eyelid, which can be caused by facial nerve problems....
Difficulty Concentrating
Trouble focusing or paying attention, which can be caused by stress, sleep problems, depression, or other conditions....
Difficulty Starting Urination
Difficulty beginning to urinate, which can be a sign of an enlarged prostate or other conditions....
Diplopia
Diplopia is a condition in which a single object is perceived as two images, it is also known as double vision....
Distal lower limb muscle weakness
Reduced strength of the distal musculature of the legs....
Distal muscle weakness
Reduced strength of the musculature of the distal extremities....
Distal upper limb muscle weakness
Reduced strength of the distal musculature of the arms....
Distorted Vision
Straight lines that appear wavy or distorted, which can be a sign of macular degeneration....
Dizziness
A feeling of lightheadedness, unsteadiness, or faintness, which can be caused by many conditions....
Drooling
Excess saliva that flows out of the mouth, which can be caused by swallowing problems, medication, or neurological condi...
Drowsiness
Abnormal feeling of sleepiness or difficulty staying awake....
Dry Eyes
Insufficient moisture on the surface of the eye causing irritation, burning, or grittiness....
Dry Mouth
A feeling of dryness in the mouth due to reduced saliva, which can be caused by medications, Sjogren syndrome, or dehydr...
Dry skin
Skin characterized by the lack of natural or normal moisture....
Dyspepsia
A heterogeneous group of symptoms that are localized in the epigastric region. Typical dyspeptic symptoms include postpr...
Dysphagia
Difficulty in swallowing....
Dyspnea
Difficult or labored breathing. Dyspnea is a subjective feeling only the patient can rate, e.g., on a Borg scale....
Ear Discharge
Fluid draining from the ear, which can be a sign of an ear infection or eardrum perforation....
Ear Fullness
A feeling of pressure or fullness in the ear, which can accompany inner ear conditions....
Ear Swelling
Swelling of the ear or surrounding area, which can be a sign of infection or injury....
Ear pain
Pain in the ear can be a consequence of otologic disease (primary or otogenic otalgia), or can arise from pathologic pro...
Early onset absence seizures
Typical absence seizures starting before the age of 4 years....
Edema
An abnormal accumulation of fluid beneath the skin, or in one or more cavities of the body....
Elbow Pain
Pain in the elbow joint or surrounding area, which can be caused by tendonitis, arthritis, or injury....
Elevated Mood
Abnormally elevated, expansive, or irritable mood, which can be a feature of mania in bipolar disorder....
Emotional dearth
A diminished ability to experience, express, or connect with emotions across both positive and negative valences. This s...
Epileptic spasm
A sudden flexion, extension, or mixed extension-flexion of predominantly proximal and truncal muscles that is usually mo...
Episodic abdominal pain
An intermittent form of abdominal pain....
Episodic apnea induced by febrile illness or stress
Recurrent episodes of apnea that are precipitated by factors such as illness, fatigue, or stress....
Episodic flaccid weakness
Recurrent episodes of muscle flaccidity, a type of paralysis in which a muscle becomes soft and yields to passive stretc...
Episodic paroxysmal anxiety
Recurrent attacks of severe anxiety, which occur without restriction to any particular situation or set of circumstances...
Episodic respiratory distress
Information about Episodic respiratory distress....
Episodic vomiting
Paroxysmal, recurrent episodes of vomiting....
Epistaxis
Epistaxis, or nosebleed, refers to a hemorrhage localized in the nose....
Erectile dysfunction
A multidimensional but common male sexual dysfunction that involves an alteration in any of the components of the erecti...
Excess Facial or Body Hair
Excessive hair growth in women in areas where hair is usually minimal, which can be related to hormonal conditions such ...
Excess Gas
The passage of gas from the digestive tract, which can be related to diet, digestion, or IBS....
Excess Tearing
Excessive tear production, which can accompany cluster headaches or eye irritation....
Excessive Sleep
Sleeping for unusually long periods, which can be a feature of depression or other conditions....
Excessive Sweating
Sweating more than is needed to regulate body temperature, which can accompany fever, anxiety, hypoglycemia, or heart co...
Excessive Thirst
An abnormal or excessive feeling of thirst that persists even after drinking fluids, which can be a sign of high blood s...
Excessive bleeding after a venipuncture
An abnormal high amount of bleeding following the procedure of taking a blood sample....
Excessive bleeding from superficial cuts
An abnormally increased degree of bleeding following a superficial injury to the surface of the skin....
Excessive daytime somnolence
A state of abnormally strong desire for sleep during the daytime....
Exercise-induced muscle fatigue
An abnormally increased tendency towards muscle fatigue induced by physical exercise....
Exercise-induced myalgia
The occurrence of an unusually high amount of muscle pain following exercise....
Exertional dyspnea
Perceived difficulty to breathe that occurs with exercise or exertion and improves with rest....
External ophthalmoplegia
Paralysis of the external ocular muscles....
Eye Discharge
Discharge from the eye, which can be a sign of conjunctivitis or infection....
Eye Floaters
Small specks or shapes that drift across your field of vision, which can be a sign of eye inflammation or other conditio...
Eye Irritation
Irritation or burning of the eyes, which can be related to allergies, dryness, or infection....
Eye Itching
Itching of the eyes, which is common in allergic conjunctivitis....
Facial Flushing
Redness and warmth of the face, which can be related to heat, emotions, rosacea, or other causes....
Facial Pain
Pain in the face, which can be caused by sinus, dental, nerve, or other conditions....
Facial Pressure
A feeling of pressure in the face, which is common in sinus conditions....
Facial Redness
Redness of the face, which can be caused by rosacea, flushing, or skin conditions....
Facial diplegia
Facial diplegia refers to bilateral facial palsy (bilateral facial palsy is much rarer than unilateral facial palsy)....
Facial edema
Information about Facial edema....
Facial palsy
Facial nerve palsy is a dysfunction of cranial nerve VII (the facial nerve) that results in inability to control facial ...
Facial tics
Sudden, repetitive, nonrhythmic motor movements (spasms), involving the eyes and muscles of the face....
Faded Colors
Colors that appear less vivid or faded, which can be a sign of cataracts....
Failure to thrive
Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm....
Fainting
A temporary loss of consciousness due to reduced blood flow to the brain, which can have cardiac, neurological, or metab...
Fatigable weakness
A type of weakness that occurs after a muscle group is used and lessens if the muscle group has some rest. That is, ther...
Fatigable weakness of bulbar muscles
A type of weakness of the bulbar muscles (muscles of the mouth and throat responsible for speech and swallowing) that oc...
Fatigable weakness of distal limb muscles
A type of weakness of a skeletal muscle of distal part of a limb that occurs after a muscle group is used and lessens if...
Fatigable weakness of neck muscles
A type of weakness of a skeletal muscle in the neck that occurs after a muscle group is used and lessens if the muscle g...
Fatigable weakness of respiratory muscles
A type of weakness of the muscles involved in breathing (respiration) that occurs after a muscle group is used and lesse...
Fatigable weakness of skeletal muscles
A type of weakness of skeletal muscle that occurs after a muscle group is used and lessens if the muscle group has some ...
Fatigable weakness of swallowing muscles
A type of weakness of the muscles involved in swallowing that occurs after a muscle group is used and lessens if the mus...
Fatiguable weakness of proximal limb muscles
A type of weakness of a skeletal muscle of proximal part of a limb that occurs after a muscle group is used and lessens ...
Fatigue
A subjective feeling of tiredness characterized by a lack of energy and motivation....
Fear of Dying
Intense fear of dying or losing control during a panic attack....
Febrile convulsion
A febrile seizure is any type of seizure (most often a generalized tonic-clonic seizure) occurring with fever (at least ...
Febrile status epilepticus
A seizure lasting 30 minutes without fully regaining consciousness, provoked by fever (temperature greater than 38.0 deg...
Feelings of Worthlessness
Persistent feelings of low self-worth or guilt, which can be a symptom of depression....
Fever
Body temperature elevated above the normal range....
Finger swelling
Enlargement of the soft tissues of one or more fingers....
First dorsal interossei muscle weakness
Information about First dorsal interossei muscle weakness....
Flank Pain
Pain in the side of the body between the ribs and hip, often related to the kidneys or urinary tract....
Flu-Like Symptoms
A combination of fever, fatigue, and body aches, which can accompany infections....
Fluid-Filled Blisters
Small fluid-filled blisters on the skin, which can be a feature of contact dermatitis or viral infections....
Flushing
Recurrent episodes of redness of the skin together with a sensation of warmth or burning of the affected areas of skin....
Focal autonomic seizure
An autonomic seizure is a type of focal non-motor seizure characterized by alteration of autonomic nervous system functi...
Focal aware motor seizure
A type of focal motor seizure in which awareness is retained throughout the seizure....
Focal aware seizure
A type of focal-onset seizure in which awareness is preserved. Awareness during a seizure is defined as the patient bein...
Focal clonic seizure
A focal clonic seizure is a type of focal motor seizure characterized by sustained rhythmic jerking, that is regularly r...
Focal emotional seizure with laughing
Focal emotional seizure with laughing (gelastic) is characterized by bursts of laughter or giggling, usually without app...
Focal hemiclonic seizure
A type of focal clonic seizure characterized by sustained rhythmic jerking rapidly involves one side of the body at seiz...
Focal hemifacial clonic seizure
Focal seizure characterized at onset by clonic movements affecting half of the face....
Focal impaired awareness seizure
Focal impaired awareness seizure (or focal seizure with impaired or lost awareness) is a type of focal-onset seizure cha...
Focal motor seizure
A type of focal-onset seizure characterized by a motor sign as its initial semiological manifestation....
Focal myoclonic seizure
A type of focal motor seizure characterized by sudden, brief (<100 ms) involuntary single or multiple contraction(s) of ...
Focal seizure with eyelid myoclonia
Focal seizure with eyelid myoclonia, not eyelid myoclonias in the context of absence seizures....
Focal sensory seizure
A focal sensory seizure is a type seizure beginning with a subjective sensation....
Focal sensory seizure with olfactory features
Seizures characterized by olfactory phenomena as its first clinical manifestation....
Focal sensory seizure with visual features
A seizure characterized by elementary visual hallucinations such as flashing or flickering lights/colors, or other shape...
Focal tonic seizure
A type of focal motor seizure characterized by sustained increase in muscle contraction, lasting a few seconds to minute...
Focal-onset seizure
A focal-onset seizure is a type of seizure originating within networks limited to one hemisphere. They may be discretely...
Foot Pain
Pain in the foot, which can be caused by injury, overuse, arthritis, or other conditions....
Foot Weakness
Weakness in the foot, which can be caused by nerve compression such as sciatica....
Foot dorsiflexor weakness
Weakness of the muscles responsible for dorsiflexion of the foot, that is, of the movement of the toes towards the shin....
Forearm Pain
Pain in the forearm, which can be caused by muscle strain, overuse, or nerve conditions....
Frequent Infections
Experiencing infections more often than usual, which can be a sign of immune, metabolic, or other conditions....
Frequent Urination
The need to urinate more often than usual, which can be a sign of diabetes, urinary tract infection, enlarged prostate, ...
Frequent Urination
The need to urinate more often than usual....
Frequent Urination
The need to urinate more often than usual, which can be a sign of a urinary tract infection....
Frontalis muscle weakness
Reduced strength of the frontalis muscle (which is located on the forehead)....
Gastroesophageal reflux
A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophagea...
Gastrointestinal hemorrhage
Hemorrhage affecting the gastrointestinal tract....
General Malaise
A general feeling of being unwell, tired, or uncomfortable, which often accompanies illness....
Generalised tonic-clonic seizure without focal onset
A bilateral tonic-clonic seizure with generalized onset is a type of bilateral tonic-clonic seizure characterized by gen...
Generalized clonic seizure
Generalized clonic seizure is a type of generalized motor seizure characterized by sustained bilateral jerking, either s...
Generalized lymphadenopathy
A generalized form of lymphadenopathy....
Generalized muscle weakness
Generalized weakness or decreased strength of the muscles, affecting both distal and proximal musculature....
Generalized myoclonic seizure
A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 m...
Generalized myoclonic-atonic seizure
A generalized myoclonic-atonic seizure is a type of generalized motor seizure characterized by a myoclonic jerk followed...
Generalized non-motor (absence) seizure
A generalized non-motor (absence) seizure is a type of a type of dialeptic seizure that is of electrographically general...
Generalized tonic seizure
A generalized tonic seizure is a type of generalized motor seizure characterized by bilateral limb stiffening or elevati...
Generalized-onset seizure
A generalized-onset seizure is a type of seizure originating at some point within, and rapidly engaging, bilaterally dis...
Genital Blisters
Small fluid-filled blisters in the genital area, which can be a sign of genital herpes....
Genital Sores
Open sores in the genital area, which can be a sign of herpes, syphilis, or other infections....
Genital Warts
Small fleshy growths in the genital area, which are caused by certain types of HPV....
Gingival bleeding
Hemorrhage affecting the gingiva....
Glare Sensitivity
Difficulty seeing in bright light or at night due to glare, which can be a sign of cataracts....
Goiter
An enlargement of the thyroid gland....
Groin Pain
Pain in the groin area, which can be caused by hip conditions, hernias, or other problems....
Halitosis
Noticeably unpleasant odors exhaled in breathing....
Halos Around Lights
Seeing halos or rings around lights, which can be a sign of cataracts or glaucoma....
Hand Numbness
Numbness in the hands, which can be caused by nerve compression such as carpal tunnel syndrome....
Hand Pain
Pain in the hands, which can be caused by arthritis, nerve compression, or overuse....
Hand Tingling
Tingling sensations in the hands, which can be a sign of nerve compression or neuropathy....
Hand Weakness
Weakness in the hands, which can be caused by nerve compression such as carpal tunnel syndrome....
Hand muscle weakness
Reduced strength of the musculature of the hand....
Hand tremor
An unintentional, oscillating to-and-fro muscle movement affecting the hand....
Head tremor
An unintentional, oscillating to-and-fro muscle movement affecting head movement....
Headache
Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve....
Hearing Loss
A reduced ability to hear, which can be sudden or gradual and related to the ear, nerves, or aging....
Hearing impairment
A decreased magnitude of the sensory perception of sound....
Heartburn
A burning sensation in the chest or throat caused by stomach acid flowing back into the esophagus....
Heat intolerance
The inability to maintain a comfortable body temperature in warm or hot weather....
Heavy Scrotum
A feeling of heaviness in the scrotum, which can be related to a lump, fluid, or other conditions....
Heel Pain
Pain in the heel, commonly caused by plantar fasciitis....
Height Loss
A decrease in height, which can be caused by spinal compression fractures related to osteoporosis....
Hematemesis
The vomiting of blood....
Hematochezia
The passage of fresh (red) blood per anus, usually in or with stools. Most rectal bleeding comes from the colon, rectum,...
Hematuria
The presence of blood in the urine. Hematuria may be gross hematuria (visible to the naked eye) or microscopic hematuria...
Hemiparesis
Loss of strength in the arm, leg, and sometimes face on one side of the body. Hemiplegia refers to a complete loss of st...
Hemiplegia/hemiparesis
Loss of strength in the arm, leg, and sometimes face on one side of the body. Hemiplegia refers to a severe or complete ...
Hemoptysis
Coughing up (expectoration) of blood or blood-streaked sputum from the larynx, trachea, bronchi, or lungs....
Hip flexor weakness
Reduced ability to flex the femur, that is, to pull the knee upward....
Hip pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the h...
Hoarse voice
Hoarseness refers to a change in the pitch or quality of the voice, with the voice sounding weak, very breathy, scratchy...
Hot Flashes
Sudden sensations of intense heat, sweating, and flushing, commonly associated with menopause....
Hunger
The sensation of needing to eat, which can be increased by low blood sugar or metabolic conditions....
Hydroureter
The distention of the ureter with urine....
Hyperactivity
Excessive movement and restlessness, characteristic of ADHD....
Hypertension
The presence of chronic increased pressure in the systemic arterial system....
Hypervigilance
A state of heightened alertness and watchfulness, characteristic of PTSD....
Hypocalcemic seizures
Information about Hypocalcemic seizures....
Hypoesthesia
Decreased ability to perceive touch....
Hypoglycemic seizures
Information about Hypoglycemic seizures....
Hypotension
Low Blood Pressure, vascular hypotension....
Hypoventilation
A reduction in the amount of air transported into the pulmonary alveoli by breathing, leading to hypercapnia (increase i...
Impaired Ig class switch recombination
An impairment of the class-switch recombination process that normally leads B lymphocytes to produce IgG, IgA, or IgE....
Impulsivity
Acting without thinking about consequences, characteristic of ADHD....
Inability to Fully Empty Bladder
The feeling that the bladder is not completely empty after urinating, which can be related to prostate or bladder condit...
Inattention
Difficulty sustaining attention on tasks, characteristic of ADHD....
Increased Appetite
A stronger than usual desire to eat, which can be related to hormonal, metabolic, or mood conditions....
Increased body weight
Abnormally increased body weight....
Increased muscle fatiguability
An abnormal, increased fatiguability of the musculature....
Infantile sensorineural hearing impairment
A form of sensorineural hearing impairment with infantile onset....
Infertility
The inability to conceive after a year of trying, which can be related to many factors in either partner....
Inflamed Tongue
Inflammation of the tongue causing swelling, redness, and pain, which can be related to nutritional deficiencies or infe...
Inflated Self-Esteem
An exaggerated sense of one's importance, abilities, or power, which can be a feature of mania....
Infrequent Periods
Menstrual periods that occur less often than every 35 days, which can be related to hormonal or reproductive conditions....
Insomnia
Persistent difficulty in starting or maintaining sleep, or waking up earlier than desired, despite having adequate oppor...
Insulin Resistance
A condition in which cells respond poorly to insulin, often preceding type 2 diabetes....
Intention tremor
A type of kinetic tremor that occurs during target directed movement is called intention tremor. That is, an oscillatory...
Intercostal muscle weakness
Lack of strength of the intercostal muscles, i.e., of the muscle groups running along the ribs that create and move the ...
Intermittent diarrhea
Repeated episodes of diarrhea separated by periods without diarrhea....
Intermittent episodes of respiratory insufficiency due to muscle weakness
Information about Intermittent episodes of respiratory insufficiency due to muscle weakness....
Intermittent jaundice
Jaundice that is sometimes present, sometimes not....
Internal hemorrhage
The presence of hemorrhage within the body....
Intestinal bleeding
Bleeding from the intestines....
Intracranial hemorrhage
Hemorrhage occurring within the skull....
Intractable diarrhea
Information about Intractable diarrhea....
Intrahepatic cholestasis with episodic jaundice
Information about Intrahepatic cholestasis with episodic jaundice....
Intrusive Memories
Unwanted, distressing memories of a traumatic event, characteristic of PTSD....
Intrusive Thoughts
Unwanted, repetitive thoughts that cause anxiety, characteristic of OCD....
Inverted Nipple
A nipple that turns inward, which can be a sign of breast conditions and should be evaluated....
Involuntary Eye Movement
Rapid, involuntary back-and-forth eye movements, which can be related to inner ear or neurological conditions....
Iron Deficiency
Low iron stores in the body, which can cause anemia and fatigue....
Iron Deficiency Anemia
Anemia caused by low iron levels, which can be a sign of bleeding or poor absorption....
Irregular Periods
Menstrual cycles that vary in length or timing, which can be related to hormonal, lifestyle, or medical factors....
Irritability
Easily annoyed or frustrated mood, which can be caused by stress, sleep problems, hormonal changes, or mood disorders....
Isometric tremor
An isometric tremor occurs with muscle contraction against a rigid stationary object (e.g., when making a fist)....
Itchy Blistering Rash
An intensely itchy, blistering skin rash, which is a skin manifestation of celiac disease....
Itchy Ear
Itching inside or around the ear, which can be caused by infection, dryness, or skin conditions....
Itchy Eyes
Itching of the eyes, which is common in allergies....
Itchy Nose
Itching inside the nose, which is common in allergic rhinitis....
Itchy Skin
Skin that itches, which can be caused by dryness, allergies, infections, or systemic conditions....
Jaundice
Yellow pigmentation of the skin due to bilirubin, which in turn is the result of increased bilirubin concentration in th...
Jaw claudication
Pain in the jaw or ear induced by chewing or otherwise moving the jaw....
Jaw pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the j...
Joint Cracking
A grinding or cracking sensation in a joint during movement, which can be a sign of arthritis....
Joint Stiffness
Difficulty moving a joint, especially after rest, which can be a sign of arthritis....
Joint hemorrhage
Hemorrhage occurring within a joint....
Joint swelling
Information about Joint swelling....
Keratoconjunctivitis sicca
Dryness of the eye related to deficiency of the tear film components (aqueous, mucin, or lipid), lid surface abnormaliti...
Kidney Stones
Hard mineral deposits in the kidneys that can cause severe flank pain and blood in the urine....
Kinetic tremor
Tremor that occurs during any voluntary movement. It may include visually or non-visually guided movements. Tremor durin...
Knee Stiffness
Stiffness in the knee joint, which can be a sign of arthritis or injury....
Knee Swelling
Swelling in the knee joint, which can be caused by injury, arthritis, or fluid buildup....
Knee pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the k...
Language Difficulties
Trouble finding words or understanding language, which can be a sign of cognitive decline....
Late-onset proximal muscle weakness
Lack of strength of the proximal musculature occurring late in the clinical course....
Leg Cramping with Walking
Cramping leg pain that occurs with walking and improves with rest, which can be a sign of peripheral artery disease....
Leg Discomfort
Uncomfortable sensations in the legs that are relieved by movement, which can be a sign of restless legs syndrome....
Leg Pain
Pain in the legs, which can be caused by muscle, bone, nerve, or circulation problems....
Leg Pain with Exercise
Pain or cramping in the legs that occurs with exercise and improves with rest, which can be a sign of peripheral artery ...
Leg Swelling
Swelling in one or both legs, which can be caused by fluid retention, venous problems, or blood clots....
Leg Ulcers
Open sores on the legs, often related to poor circulation or venous insufficiency....
Light Sensitivity
Discomfort or pain when looking at light, which can accompany migraine, eye inflammation, or meningitis....
Lightheadedness
A feeling of being about to faint or lose balance, which can have many causes....
Limb muscle weakness
Reduced strength and weakness of the muscles of the arms and legs....
Limb tremor
Information about Limb tremor....
Limb-girdle muscle weakness
Weakness of the limb-girdle muscles (also known as the pelvic and shoulder girdles), that is, lack of strength of the mu...
Limited Range of Motion
Difficulty moving a joint through its normal range, which can be caused by inflammation, injury, or stiffness....
Localized Swelling
Swelling in a specific area, which can be caused by inflammation, infection, or injury....
Loss of Interest
Loss of interest or pleasure in activities once enjoyed, which is a core symptom of depression....
Loss of Smell
A reduced or lost sense of smell, which can accompany COVID-19, nasal conditions, or neurological conditions....
Loss of Taste
A reduced or lost sense of taste, which can accompany COVID-19 or other conditions....
Low Blood Sugar Symptoms
Symptoms of low blood sugar including shakiness, sweating, confusion, and rapid heartbeat....
Low Mood
Persistent sadness, emptiness, or hopelessness, which is a core symptom of depression....
Low Sex Drive
A reduced interest in sexual activity, which can be related to hormonal, psychological, or medical conditions....
Low Urine Output
Producing significantly less urine than normal, which can be a sign of dehydration or kidney problems....
Low back pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the l...
Low-frequency sensorineural hearing impairment
A form of sensorineural hearing impairment that affects primarily the lower frequencies....
Low-grade fever
Mild fever that does not exceed 38.5 degrees centigrade....
Lower Abdominal Pain
Pain in the lower abdomen, which can be related to bladder, bowel, or reproductive organs....
Lower Left Abdomen Pain
Pain in the lower left abdomen, which can be related to diverticulitis or other colon conditions....
Lower Right Abdomen Pain
Pain in the lower right abdomen, which can be a sign of appendicitis....
Lower limb muscle weakness
Weakness of the muscles of the legs....
Lymphedema
Localized fluid retention and tissue swelling caused by a compromised lymphatic system....
Maintenance insomnia
Individuals affected by abnormal difficulty in staying asleep tend to wake up at night and struggle to return to sleep. ...
Mandibular pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the m...
Masked Facial Expression
A reduced range of facial expressions, which is characteristic of Parkinson disease....
Memory impairment
An impairment of memory as manifested by a reduced ability to remember things such as dates and names, and increased for...
Menorrhagia
Prolonged and excessive menses at regular intervals in excess of 80 mL or lasting longer than 7 days....
Metrorrhagia
Bleeding at irregular intervals....
Microscopic hematuria
Microscopic hematuria detected by dipstick or microscopic examination of the urine....
Migraine
Migraine is a chronic neurological disorder characterized by episodic attacks of headache and associated symptoms....
Mildly reduced visual acuity
Mild reduction of the ability to see. On the 6m visual acuity scale, mild reduction is defined as less than 6/12 but at ...
Mitochondrial swelling
The mitochondrial matrix refers to the substance occupying the space enclosed by the inner membrane of a mitochondrion, ...
Mixed hearing impairment
A type of hearing loss resulting from a combination of conductive hearing impairment and sensorineural hearing impairmen...
Moderately reduced visual acuity
Moderate reduction of the ability to see. On the 6m visual acuity scale, moderate reduction is defined as less than 6/18...
Mood Changes
Shifts in mood, which can be related to hormonal changes, stress, or mental health conditions....
Mood Swings
Rapid changes in mood, which can be related to hormonal changes, stress, or mental health conditions....
Morning Headache
Headaches present on waking, which can be related to sleep apnea, teeth grinding, or other causes....
Morning Heel Pain
Heel pain that is worst with the first steps in the morning, characteristic of plantar fasciitis....
Morning Stiffness
Joint or body stiffness that is worst in the morning and improves with movement, which can be a sign of inflammatory art...
Mouth Pain
Pain in the mouth, which can be caused by sores, infection, or dental problems....
Mouth Sores
Painful sores in the mouth, which can be caused by infection, autoimmune disease, or other conditions....
Muffled Voice
A voice that sounds muffled or thick, which can be related to throat conditions....
Multifocal seizures
Seizures that start from several different areas of the brain (i.e., with multiple ictal onset locations)....
Multinodular goiter
Enlargement of the thyroid gland related to multiple nodules in the thyroid gland....
Muscle Cramps
Sudden, involuntary muscle contractions that cause pain, which can be related to electrolyte imbalances or dehydration....
Muscle Pain
Pain in the muscles, which can be caused by overuse, infection, or inflammatory conditions....
Muscle Spasms and Twitching
Involuntary muscle contractions and twitching, which can be a sign of low calcium or other metabolic problems....
Muscle Stiffness
Increased muscle tone that makes movement feel stiff or rigid, which can be a sign of neurological or musculoskeletal co...
Muscle Tension
Tight, tense muscles, which can be related to anxiety or stress....
Muscle fibrillation
Fine, rapid twitching of individual muscle fibers with little or no movement of the muscle as a whole as ascertained by ...
Muscle weakness
Reduced strength of muscles....
Myalgia
Pain in muscle....
Myoclonic absence seizure
Myoclonic absence seizure is a type of generalized non-motor (absence) seizure characterized by an interruption of ongoi...
Myoclonic seizure
A myoclonic seizure is a type of motor seizure characterized by sudden, brief (<100 ms) involuntary single or multiple c...
Nail Pitting
Small dents or pits in the nails, which can be a sign of psoriasis....
Nasal congestion
Reduced ability to pass air through the nasal cavity often leading to mouth breathing....
Nausea
A sensation of unease in the stomach together with an urge to vomit....
Nausea and vomiting
Nausea is a commonly encountered symptom that has been defined as an unpleasant painless subjective feeling that one wil...
Neck Lump
A lump or swelling in the neck, which can be caused by lymph nodes, thyroid, cysts, or other tissue....
Neck flexor weakness
Weakness of the muscles involved in neck flexion (sternocleidomastoid, longus capitus, longus colli, and scalenus anteri...
Neck muscle weakness
Decreased strength of the neck musculature....
Neck pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the n...
Neonatal seizure
A seizure occurring within the neonatal period (28 days beyond the full term date)....
Night Pain
Pain that is worse at night, which can be a feature of certain injuries or inflammatory conditions....
Night sweats
Occurrence of excessive sweating during sleep....
Nightmares
Distressing dreams, which can be a feature of PTSD or other conditions....
Nighttime Cough
A cough that is worse at night, which can be caused by asthma, reflux, postnasal drip, or heart failure....
Nighttime Hand Symptoms
Numbness or tingling in the hands at night, characteristic of carpal tunnel syndrome....
Nipple Discharge
Fluid leaking from the nipple that is not breast milk, which should be evaluated by a healthcare provider....
Nocturnal seizures
Seizures that occur while the affected individual is sleeping....
Nodular goiter
Enlargement of the thyroid gland related to one or more nodules in the thyroid gland....
Noisy Breathing
A high-pitched, wheezing sound during breathing, which can indicate airway obstruction....
Nonproductive cough
A cough that does not produce phlegm or mucus....
Ocular pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the e...
Oily Stools
Fatty, oily stools that float and are difficult to flush, which can be a sign of poor fat absorption....
One-Sided Eye Pain
Pain around one eye, which is characteristic of cluster headaches....
One-Sided Hearing Loss
Hearing loss in one ear, which can be related to inner ear or nerve conditions....
Ophthalmoparesis
Ophthalmoplegia is a paralysis or weakness of one or more of the muscles that control eye movement....
Opportunistic Infections
Infections that occur more frequently or severely in people with weakened immune systems....
Optic Nerve Inflammation
Inflammation of the optic nerve causing eye pain and vision loss, which can be associated with multiple sclerosis....
Oral bleeding
Information about Oral bleeding....
Oral cavity bleeding
Recurrent or excessive bleeding from the mouth....
Pain
An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms ...
Pain Around the Belly Button
Pain near the belly button, which can migrate to the lower right abdomen in appendicitis....
Pain Crisis
Episodes of severe pain, which can be a feature of sickle cell disease....
Pain Trigger Points
Specific areas where light touch triggers severe pain, characteristic of trigeminal neuralgia....
Painful Intercourse
Pain during or after sexual intercourse, which can be related to physical, hormonal, or psychological factors....
Painful Periods
Menstrual cramps and pelvic pain during menstruation, which can be a sign of conditions such as endometriosis....
Painful Sores
Sores that are painful, which can be a sign of infection or inflammation....
Painful Swallowing
Pain when swallowing, which can be a sign of throat infection, inflammation, or other conditions....
Painful Urination
Burning, stinging, or discomfort when urinating, most commonly caused by a urinary tract infection....
Painless Sore
A sore that does not hurt, which can be an early sign of syphilis....
Pale Skin
Unusually light or pale skin that can be a sign of anemia, reduced blood flow, or low blood pressure....
Palpebral edema
Edema in the region of the eyelids....
Palpitations
A sensation that the heart is pounding or racing, which is a non-specific sign but may be a manifestation of arrhythmia....
Paresthesia
Abnormal sensations such as tingling, pricking, or numbness of the skin with no apparent physical cause....
Pedal edema
An abnormal accumulation of excess fluid in the lower extremity resulting in swelling of the feet and extending upward t...
Pelvic Pressure
A feeling of pressure in the pelvic area, which can be related to bladder, bowel, or reproductive conditions....
Pelvic girdle muscle weakness
Weakness of the muscles of the pelvic girdle (also known as the hip girdle), that is, lack of strength of the muscles ar...
Pelvic pain
Pain perceived in the area of the pelvis, the lower part of the abdomen located between the hip bones....
Percussion myotonia
A localized myotonic contraction in a muscle in reaction to percussion (tapping with the examiner's finger, a rubber per...
Pericarditis
Inflammation of the sac-like covering around the heart (pericardium)....
Periodic fever
Episodic fever that recurs at regular intervals....
Periorbital fullness
Increase in periorbital soft tissue....
Peroneal muscle weakness
Weakness of the peroneal muscles....
Persistent bleeding after trauma
Information about Persistent bleeding after trauma....
Persistent fever
Fever that persists longer than expected for an acute infectious disease. No precise threshold exists, and the clinical ...
Personality Changes
Significant changes in personality or behavior, which can be a sign of cognitive or neurological conditions....
Pharyngalgia
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) and perceived to o...
Pharyngeal edema
Abnormal accumulation of fluid leading to swelling of the pharynx....
Photosensitive myoclonic seizure
Generalised myoclonic seizure provoked by flashing or flickering light....
Photosensitive tonic-clonic seizure
Generalized-onset tonic-clonic seizures that are provoked by flashing or flickering light....
Pica
A craving for non-food items such as ice, dirt, or clay, which can be a sign of iron deficiency....
Pill-rolling tremor
A type of resting tremor characterized by simultaneous rubbing movements of thumb and index fingers against each other....
Pollakisuria
Increased frequency of urination....
Poor Balance
Difficulty maintaining balance when standing or walking, which can be related to neurological, inner ear, or musculoskel...
Poor Judgment
Impaired decision-making, which can be a sign of cognitive decline....
Poor Wound Healing
Wounds that take longer than usual to heal, which can be related to diabetes, poor circulation, or immune problems....
Poor appetite
A reduced desire to eat....
Poor suck
An inadequate sucking reflex, resulting in the difficult of newborns to be breast-fed....
Post-partum hemorrhage
Significant maternal hemorrhage/blood loss following deilvery of a child....
Postnasal Drip
Mucus that drips down the back of the throat from the nose, which can cause coughing and a sore throat....
Postural tremor
A type of tremors that is triggered by holding a limb in a fixed position....
Pressured Speech
Fast, continuous speech that is difficult to interrupt, which can be a feature of mania....
Productive cough
A cough that produces phlegm or mucus....
Progressive distal muscle weakness
Progressively reduced strength of the distal musculature....
Progressive hearing impairment
A progressive form of hearing impairment....
Progressive muscle weakness
Information about Progressive muscle weakness....
Progressive proximal muscle weakness
Lack of strength of the proximal muscles that becomes progressively more severe....
Progressive sensorineural hearing impairment
A progressive form of sensorineural hearing impairment....
Progressive visual loss
A reduction of previously attained ability to see....
Projectile vomiting
Vomiting that ejects the gastric contents with great force....
Prolonged bleeding after dental extraction
Prolonged bleeding post dental extraction sufficient to require medical intervention....
Prolonged bleeding after surgery
Bleeding that persists longer than the normal time following a surgical procedure....
Prolonged bleeding following circumcision
Bleeding that persists for a longer than usual time following circumcision....
Prolonged bleeding following procedure
Prolonged or protracted bleeding following an invasive procedure or intervention....
Prolonged bleeding time
Prolongation of the time taken for a standardized skin cut of fixed depth and length to stop bleeding....
Prolonged neonatal jaundice
Neonatal jaundice refers to a yellowing of the skin and other tissues of a newborn infant as a result of increased conce...
Protracted diarrhea
Information about Protracted diarrhea....
Proximal lower limb muscle weakness
A lack of strength of the proximal muscles of the legs....
Proximal muscle weakness
A lack of strength of the proximal muscles....
Proximal upper limb muscle weakness
A lack of strength of the proximal muscles of the arms....
Pruritus
Pruritus is an itch or a sensation that makes a person want to scratch. This term refers to an abnormally increased disp...
Pulsing Abdomen
A pulsing sensation in the abdomen, which can be related to the aorta and should be evaluated by a healthcare provider....
Pus-Filled Bumps
Small bumps on the skin filled with pus, commonly seen in acne or skin infections....
Quadriceps muscle weakness
Weakness of the quadriceps muscle (that is, of the muscle fasciculus of quadriceps femoris)....
Radiating Pain
Pain that spreads from one area to another, often along a nerve path....
Raised Itchy Welts
Raised, red, itchy bumps on the skin, characteristic of hives....
Rapid Breathing
Breathing faster or more deeply than normal, which can cause dizziness and tingling and is often linked to anxiety....
Rapid Breathing
Breathing faster than normal, which can be a sign of fever, infection, anxiety, or respiratory conditions....
Rapid Heart Rate
A resting heart rate above 100 beats per minute, which can be caused by fever, anxiety, dehydration, thyroid conditions,...
Rapid Heartbeat
A heart rate that is faster than normal, which can be caused by stress, fever, or heart rhythm conditions....
Recurrent fever
Periodic (episodic or recurrent) bouts of fever....
Recurrent intrapulmonary hemorrhage
A recurrent hemorrhage occurring within the lung....
Recurrent paroxysmal headache
Repeated episodes of headache with rapid onset, reaching a peak within minutes and of short duration (less than one hour...
Recurrent pharyngitis
Increased susceptibility to pharyngitis, as manifested by recurrent episodes of pharyngeal infection that are unusual in...
Recurrent singultus
A contraction of the diaphragm that repeats several times per minute. In humans, the abrupt rush of air into the lungs c...
Red Eye
Redness of the eye, which can be caused by infection, allergy, dryness, or injury....
Red Scaly Patches
Well-defined red patches with silvery scales, characteristic of psoriasis....
Red Skin Bumps
Small, raised red bumps on the skin, which can be a feature of eczema or other skin conditions....
Red-green dyschromatopsia
Difficulty with discriminating red and green hues....
Redness Over a Joint
Redness of the skin over a joint, which can be a sign of inflammatory arthritis such as gout....
Redness in Mouth
Redness inside the mouth, which can be a sign of inflammation or infection....
Reduced Muscle Mass
Loss of muscle mass, which can be related to low testosterone, aging, or other conditions....
Reduced Range of Motion
Difficulty moving a joint through its full range, which can be caused by arthritis, injury, or stiffness....
Reduced Sense of Smell
A decreased ability to smell, which can be related to nasal conditions, infections, or neurological conditions....
Reduced Skin Elasticity
Skin that stays tented when pinched, which is a sign of dehydration....
Reduced Spine Mobility
Limited movement of the spine, which can be a feature of ankylosing spondylitis....
Reduced Visual Acuity
A decrease in the sharpness of vision, which can be caused by many eye conditions....
Reduced consciousness
Abnormally diminished level of attention, responsiveness, or wakefulness....
Regurgitation
The return of food or liquid from the stomach back into the mouth, which can be a sign of acid reflux or swallowing prob...
Repetitive Behaviors
Repetitive behaviors performed to reduce anxiety, characteristic of OCD....
Repetitive Behaviors
Behaviors that are repeated, which can be a feature of OCD, autism, or other conditions....
Respiratory insufficiency due to muscle weakness
Information about Respiratory insufficiency due to muscle weakness....
Resting tremor
A resting tremor occurs when muscles are at rest and becomes less noticeable or disappears when the affected muscles are...
Restlessness
An inability to sit still or relax, which can be related to anxiety, ADHD, or other conditions....
Restricted Interests
Intense, focused interests in specific topics, characteristic of autism spectrum disorder....
Retinal hemorrhage
Bleeding located within the retina. Retinal hemorrhages range from the smallest dot and blot hemorrhage to massive sub-h...
Rhinorrhea
Increased discharge of mucus from the nose....
Right Upper Abdomen Pain
Pain in the upper right part of the abdomen, which can be related to the liver, gallbladder, or bile ducts....
Ring-Shaped Rash
A circular, ring-shaped rash, characteristic of ringworm or other fungal infections....
Rounded Face
A round, puffy appearance of the face, which can be a feature of excess cortisol....
ST segment depression
An electrocardiographic anomaly in which the ST segment is observed to be located inferior to the isoelectric line....
Scalp Tenderness
Pain or tenderness of the scalp, which can be associated with certain types of headache or inflammation....
Scaly Scalp
Scales and redness on the scalp, which is a common location for psoriasis....
Scaly Skin
Skin that flakes or peels, which can be caused by psoriasis, eczema, or fungal infections....
Scapular winging
Abnormal protrusion of the scapula away from the surface of the back....
Scapuloperoneal weakness
Information about Scapuloperoneal weakness....
Scarring
Areas of scarred skin, which can result from acne, injury, or surgery....
Scarring alopecia of scalp
Information about Scarring alopecia of scalp....
Scrotal Swelling
Swelling of the scrotum, which can be caused by fluid, a hernia, or other conditions....
Secretory diarrhea
Watery voluminous diarrhea resulting from an imbalance between ion and water secretion and absorption....
Seizure
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs a...
Sensorineural hearing impairment
A type of hearing impairment in one or both ears related to an abnormal functionality of the cochlear nerve....
Sensory Sensitivities
Unusual sensitivity to sounds, lights, textures, or other sensory input, characteristic of autism spectrum disorder....
Severe sensorineural hearing impairment
A severe form of sensorineural hearing impairment....
Severely reduced visual acuity
Severe reduction of the ability to see. On the 6m visual acuity scale, severe reduction is defined as less than 6/60 but...
Short term memory impairment
A deficit in the retention of pieces of information (memory chunks) for a relatively short time (usually up to 30 second...
Shoulder girdle muscle weakness
The shoulder, or pectoral, girdle is composed of the clavicles and the scapulae. Shoulder-girdle weakness refers to lack...
Shoulder pain
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the s...
Side Vision Loss
Loss of peripheral (side) vision, which can be a sign of glaucoma....
Simple febrile seizure
A short generalized seizure, of a duration of <15 min, not recurring within 24 h, occurring during a febrile episode not...
Skin Discoloration
Changes in skin color, which can be caused by many conditions....
Skin Nodules
Firm lumps under or in the skin, which can be a feature of severe acne or other conditions....
Skin Redness
Redness of the skin caused by increased blood flow, which can be a sign of inflammation or infection....
Skin Stretch Marks
Purple or red streaks on the skin, which can be a feature of excess cortisol or rapid weight change....
Skin Swelling
Swelling of the skin and tissues, which can be a sign of infection or inflammation....
Skin nodule
Morphologically similar to a papule, but greater than either 10mm in both width and depth, and most frequently centered ...
Skin rash
A red eruption of the skin....
Sleep Apnea
Repeated pauses in breathing during sleep, which can cause daytime sleepiness and health risks....
Sleep Disorders
Problems with the amount, timing, or quality of sleep, which can have many causes....
Sleep Disturbances
Disruptions to normal sleep, which can be related to stress, illness, or hormonal changes....
Sleep onset insomnia
Difficulty initiating sleep, that is, increased sleep onset latency, refers to the condition where it takes 30 minutes o...
Slow Growth
Growth that is slower than expected for age, which can be related to chronic illness or nutritional problems....
Slow Heart Rate
A resting heart rate below 60 beats per minute, which can be normal in athletes or a sign of an electrical or thyroid pr...
Slow Wound Healing
Wounds that heal more slowly than expected, which can be related to high blood sugar, poor circulation, or immune proble...
Slowed Movement
Slowness of movement and reduced automatic movements, which is a hallmark of Parkinson disease....
Slowed Thoughts and Movements
Slowing of physical movements, speech, and thinking, which can be a symptom of depression....
Slurred Speech
Difficulty speaking clearly with slurred or slow speech, which can be a sign of stroke, neurological conditions, or into...
Small Handwriting
Writing that becomes progressively smaller, which can be a sign of Parkinson disease....
Small Skin Bumps
Small, raised, solid bumps on the skin, which can be caused by acne, allergies, or other conditions....
Sneezing
Sudden, forceful expulsion of air from the nose and mouth, common in allergies and colds....
Snoring
Loud breathing during sleep caused by partial airway obstruction, which can be a sign of obstructive sleep apnea....
Social Communication Difficulties
Difficulty with verbal and nonverbal communication in social situations, characteristic of autism spectrum disorder....
Social Withdrawal
Avoiding social interactions, which can be a feature of depression, anxiety, or other conditions....
Sore Throat
Pain, scratchiness, or irritation of the throat that often worsens when swallowing, commonly caused by viral or bacteria...
Sound Sensitivity
Discomfort or pain triggered by sound, often associated with migraine....
Spider Veins on Face
Small, visible blood vessels on the face, which can be a feature of rosacea....
Stabbing Pain
Sharp, stabbing pain, which can be characteristic of nerve conditions such as trigeminal neuralgia....
Status epilepticus
Status epilepticus is a type of prolonged seizure resulting either from the failure of the mechanisms responsible for se...
Stiff Neck
Difficulty moving the neck with pain or stiffness, which with fever and headache can be a sign of meningitis....
Straining with Bowel Movements
The need to strain excessively to pass stool, which can be a sign of constipation....
Subcutaneous hemorrhage
This term refers to an abnormally increased susceptibility to bruising (purpura, petechiae, or ecchymoses)....
Sudden Chest Pain
Chest pain that comes on suddenly, which can be a sign of a medical emergency such as a collapsed lung or heart problem....
Sudden Joint Pain
Joint pain that begins suddenly, which is characteristic of gout and other acute inflammatory conditions....
Sudden Shortness of Breath
Breathlessness that comes on suddenly, which can be a sign of a blood clot in the lungs or other emergencies....
Sudden Urge to Urinate
A sudden, strong need to urinate that is difficult to delay, which can be a sign of bladder irritation or overactive bla...
Sun Sensitivity
A skin reaction to sunlight, which can be a feature of lupus and other conditions....
Swelling
Enlargement or puffiness of a body area caused by fluid, inflammation, or tissue growth....
Swelling of proximal interphalangeal joints
Information about Swelling of proximal interphalangeal joints....
Swollen Armpit Lymph Nodes
Swollen lymph nodes in the armpit, which can be related to infection or require evaluation....
Swollen Hands and Feet
Swelling of the hands and feet, which can be a feature of certain blood disorders....
Swollen Lymph Nodes
Enlarged lymph nodes that can occur with infection, immune reactions, or certain cancers....
Swollen Neck Lymph Nodes
Swollen lymph nodes in the neck, often a sign of infection, inflammation, or other conditions....
Symmetric Joint Pain
Joint pain and swelling affecting the same joints on both sides of the body, characteristic of rheumatoid arthritis....
Tailbone Pain
Pain near the tailbone (coccyx), which can be caused by injury, prolonged sitting, or a pilonidal cyst....
Taste Changes
An altered or reduced sense of taste, which can be caused by infection, medication, or nerve conditions....
Tenderness
Pain or discomfort when pressure is applied to an area, which can indicate inflammation or injury....
Tendon Insertion Pain
Inflammation and pain where tendons attach to bone, which can be a feature of spondyloarthritis....
Testicular Lump
A lump or mass in the testicle, which should always be evaluated by a healthcare provider....
Testicular Pain
Pain in one or both testicles, which can be caused by infection, injury, or other conditions....
Thenar muscle weakness
Information about Thenar muscle weakness....
Thickened Skin
Thickened, leathery skin from chronic scratching, which can be a feature of eczema....
Thirst
The sensation of needing to drink, which can be increased by dehydration, high blood sugar, or other conditions....
Throbbing Headache
A headache with a pounding or throbbing quality, which is characteristic of migraine....
Thunderclap headache
Severe head pain with sudden onset, reaching its maximum intensity in less than one minute and lasting from one hour to ...
Thyroid Nodule
A lump in the thyroid gland, most of which are benign but some require evaluation....
Thyrotoxicosis with diffuse goiter
Information about Thyrotoxicosis with diffuse goiter....
Tibialis muscle weakness
Muscle weakness affecting the tibialis anterior muscle....
Tinnitus
Tinnitus is an auditory perception that can be described as the experience of sound, in the ear or in the head, in the a...
Tongue fasciculations
Fasciculations or fibrillation affecting the tongue muscle....
Tongue muscle weakness
Reduced strength of the tongue musculature, resulting in difficulties moving the tongue and possible accompanied by dysa...
Tongue tremor
An unintentional, oscillating to-and-fro muscle movement affecting the tongue....
Tonic seizure
A tonic seizure is a type of motor seizure characterized by unilateral or bilateral limb stiffening or elevation, often ...
Tonsil Pus
White or yellow patches of pus on the tonsils, which can be a sign of strep throat or tonsillitis....
Tremor
An unintentional, oscillating to-and-fro muscle movement about a joint axis....
Tremor by anatomical site
Tremor classified by the affected body part....
Triceps weakness
A lack of strength in the triceps muscle, which normally is responsible for extending (straightening) the elbow and medi...
Typical absence seizure
A typical absence seizure is a type of generalized non-motor (absence) seizure characterized by its sudden onset, interr...
Unexplained fevers
Episodes of fever for which no infectious cause can be identified....
Unilateral facial palsy
One-sided weakness of the muscles of facial expression and eye closure....
Unrefreshing Sleep
Sleep that does not leave you feeling rested, which can be a sign of sleep disorders or chronic fatigue syndrome....
Upper Abdominal Pain
Pain in the upper central area of the abdomen, which can be related to the stomach, esophagus, pancreas, or gallbladder....
Upper eyelid edema
Edema in the region of the upper eyelid....
Upper limb muscle weakness
Weakness of the muscles of the arms....
Upper limb postural tremor
A type of tremors that is triggered by holding an arm in a fixed position....
Urethral Discharge
Discharge from the urethra, which can be a sign of a sexually transmitted infection....
Urge to Move Legs
An uncontrollable urge to move the legs, especially at night, characteristic of restless legs syndrome....
Urge to Urinate
A strong, sudden need to urinate, which can be a sign of bladder irritation or overactivity....
Urinary Urgency
A sudden, strong need to urinate, which can be a sign of a urinary tract infection or overactive bladder....
Urinary incontinence
Loss of the ability to control the urinary bladder leading to involuntary urination....
Urticaria
Raised, well-circumscribed areas of erythema and edema involving the dermis and epidermis. Urticaria is intensely prurit...
Vaginal Dryness
Insufficient vaginal moisture, which can be related to menopause, hormonal changes, or medications....
Vaginal Itching
Itching in the vaginal area, which can be a sign of infection or irritation....
Varicose Veins
Enlarged, twisted veins, usually in the legs, caused by weakened vein walls and valves....
Vertigo
An abnormal sensation of spinning while the body is actually stationary....
Violent Coughing Fits
Bouts of severe coughing that can be exhausting and are characteristic of whooping cough....
Visual Disturbances
Changes in vision such as flashes, spots, zigzags, or blurred areas, which can accompany migraine or other conditions....
Visual loss
Loss of visual acuity (implying that vision was better at a certain time point in life). Otherwise the term reduced visu...
Visually-induced seizure
Seizures evoked by visual stimuli. This includes clinical seizures induced by strobe lighting, television and other scre...
Vocal cord paresis
Decreased strength of the vocal folds....
Vomiting
Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contracti...
Vomiting After Coughing
Vomiting that follows severe coughing fits, which can occur in whooping cough....
Waking to Urinate at Night
The need to wake up during the night to urinate, which can disrupt sleep and may be linked to bladder, prostate, or meta...
Warm Skin
Skin that feels warm to the touch, which can be a sign of infection or inflammation....
Watery Eyes
Excessive tearing, which can be caused by allergies, irritation, or blocked tear ducts....
Weak Foot Pulses
Weak or absent pulses in the feet, which can be a sign of poor circulation in the legs....
Weak Grip
Reduced strength when gripping objects, which can be caused by nerve compression, tendonitis, or muscle weakness....
Weak Urine Stream
A weak or slow urine stream, which can be a sign of an enlarged prostate....
Weakness due to upper motor neuron dysfunction
Paralysis of voluntary muscles means loss of contraction due to interruption of one or more motor pathways from the brai...
Weakness of facial musculature
Reduced strength of one or more muscles innervated by the facial nerve (the seventh cranial nerve)....
Weakness of long finger extensor muscles
Information about Weakness of long finger extensor muscles....
Weakness of muscles of respiration
Reduced function of the muscles required to generate subatmospheric pressure in the thoracic cavity during breathing: th...
Weakness of orbicularis oculi muscle
Reduced strength of the orbicularis oculi, the circumorbital muscle in the face that closes the eyelid....
Weakness of the intrinsic hand muscles
Information about Weakness of the intrinsic hand muscles....
Weight Gain
An increase in body weight that can be caused by changes in diet, activity, fluid retention, or hormonal conditions....
Weight loss
Reduction of total body weight....
Wheezing
A high-pitched whistling sound associated with labored breathing....
White Patches in Mouth
White patches or plaques in the mouth, which can be caused by thrush, lichen planus, or other conditions....
Whooping Sound
A high-pitched whooping sound made when breathing in after a coughing fit, characteristic of whooping cough....
Widespread Body Pain
Pain on both sides of the body, above and below the waist, which is characteristic of fibromyalgia....
Worsening Symptoms After Activity
Symptoms that worsen after physical or mental activity, characteristic of chronic fatigue syndrome....
Wound Drainage
Fluid leaking from a wound, cyst, or skin area, which can be a sign of infection....
Wrist Pain
Pain in the wrist, which can be caused by overuse, arthritis, or nerve compression....
Wrist swelling
Information about Wrist swelling....
Yellow Skin Growths
Yellowish deposits of cholesterol under the skin, which can be a sign of high cholesterol....