Fever
Body temperature elevated above the normal range.
Also called: Fever, Hyperthermia, Pyrexia.
Conditions associated with fever
The following conditions have been associated with fever in medical literature. This is informational and not a diagnosis.
3-hydroxy-3-methylglutaric aciduria
3-hydroxy-3-methylglutaric aciduria is a medical condition that may be associated with various symptoms and si...
3-methylcrotonyl-CoA carboxylase 1 deficiency
Any 3-methylcrotonyl-CoA carboxylase deficiency in which the cause of the disease is a mutation in the MCCC1 g...
Acute disseminated encephalomyelitis
Acute disseminated encephalomyelitis is a medical condition that may be associated with various symptoms and s...
Acute intermittent porphyria
Acute intermittent porphyria is a medical condition that may be associated with various symptoms and signs....
Acute interstitial pneumonia
Acute interstitial pneumonia is a medical condition that may be associated with various symptoms and signs....
Acute liver failure
Acute liver failure is a medical condition that may be associated with various symptoms and signs....
Acute promyelocytic leukemia
Acute promyelocytic leukemia is a medical condition that may be associated with various symptoms and signs....
Acute radiation syndrome
Acute radiation syndrome is a medical condition that may be associated with various symptoms and signs....
Acute transverse myelitis
Acute transverse myelitis is a medical condition that may be associated with various symptoms and signs....
Adult-onset Still disease
Adult-onset Still disease is a medical condition that may be associated with various symptoms and signs....
Aicardi-Goutieres syndrome 7
Any Aicardi-Goutieres syndrome in which the cause of the disease is a mutation in the IFIH1 gene....
Alveolar echinococcosis
Alveolar echinococcosis is a medical condition that may be associated with various symptoms and signs....
American trypanosomiasis
American trypanosomiasis is a medical condition that may be associated with various symptoms and signs....
Amoebiasis due to Entamoeba histolytica
Amoebiasis due to Entamoeba histolytica is a medical condition that may be associated with various symptoms an...
Amoebiasis due to free-living amoebae
Amoebiasis due to free-living amoebae is a medical condition that may be associated with various symptoms and ...
Angiostrongyliasis
Angiostrongyliasis is a medical condition that may be associated with various symptoms and signs....
Anti-glomerular basement membrane disease
Anti-glomerular basement membrane disease is a medical condition that may be associated with various symptoms ...
Antisynthetase syndrome
Antisynthetase syndrome is a medical condition that may be associated with various symptoms and signs....
Appendicitis
Inflammation of the appendix, a medical emergency, causing pain that migrates to the lower right abdomen....
Arginine vasopressin deficiency
Arginine vasopressin deficiency is a medical condition that may be associated with various symptoms and signs....
Aspergillosis
Aspergillosis is a medical condition that may be associated with various symptoms and signs....
Autoerythrocyte sensitization syndrome
Autoerythrocyte sensitization syndrome is a medical condition that may be associated with various symptoms and...
Autoimmune hemolytic anemia, warm type
Autoimmune hemolytic anemia, warm type is a medical condition that may be associated with various symptoms and...
Autoimmune pulmonary alveolar proteinosis
Autoimmune pulmonary alveolar proteinosis is a medical condition that may be associated with various symptoms ...
Avian influenza
Avian influenza is a medical condition that may be associated with various symptoms and signs....
B-cell immunodeficiency, distal limb anomalies, and urogenital malformations
B-cell immunodeficiency, distal limb anomalies, and urogenital malformations is a medical condition that may b...
Babesiosis
Babesiosis is a medical condition that may be associated with various symptoms and signs....
Bacterial toxic-shock syndrome
Bacterial toxic-shock syndrome is a medical condition that may be associated with various symptoms and signs....
Bartter disease type 1
Bartter disease type 1 is a medical condition that may be associated with various symptoms and signs....
Bartter disease type 2
Any Bartter syndrome in which the cause of the disease is a mutation in the KCNJ1 gene....
Behçet disease
Behçet disease is a medical condition that may be associated with various symptoms and signs....
Beta-ketothiolase deficiency
Beta-ketothiolase deficiency is a medical condition that may be associated with various symptoms and signs....
Blau syndrome
Blau syndrome is a medical condition that may be associated with various symptoms and signs....
Boutonneuse fever
Boutonneuse fever is a medical condition that may be associated with various symptoms and signs....
Bronchogenic cyst
Bronchogenic cyst is a medical condition that may be associated with various symptoms and signs....
Brucellosis
Brucellosis is a medical condition that may be associated with various symptoms and signs....
CAR T cell therapy-associated cytokine release syndrome
CAR T cell therapy-associated cytokine release syndrome is a medical condition that may be associated with var...
CINCA syndrome
CINCA syndrome is a medical condition that may be associated with various symptoms and signs....
Caroli disease
Caroli disease is a medical condition that may be associated with various symptoms and signs....
Caroli syndrome
Caroli syndrome is a medical condition that may be associated with various symptoms and signs....
Tests providers may use to investigate fever
When investigating fever, a healthcare provider may order one or more of the following laboratory tests. Test selection is a clinical decision made by a qualified professional.
Alpha-Fetoprotein Afp Tumor Marker Test
This blood test determines Alpha-Fetoprotein (AFP or a-Fetoprotein) levels....
Alt Blood Test Sgpt For Liver
This blood test measures levels of Alanine Aminotransferase (ALT), an enzyme in the blood, to help determine l...
Ammonia Test
This blood test is used to measure levels of ammonia to assess liver function. Symptoms of excess ammonia incl...
CBC with Differential
Measures red blood cells, white blood cells, and platelets to help evaluate overall health and detect disorder...
Comprehensive Metabolic Panel (CMP)
Measures 14 substances in the blood to assess kidney and liver function, electrolyte balance, and blood sugar ...
Crp Test C-Reactive Protein
This blood test measures levels of CRP to help indicate if cases of inflammation or infection are occurring. I...
Esr Test
The erythrocyte sedimentation rate (ESR) blood test, also called a sedimentation rate or sed rate, is used to ...
Symptoms commonly seen alongside fever
Bone Pain
Pain originating in the bones, which can be caused by injury, infection, or other conditions....
Light Sensitivity
Discomfort or pain when looking at light, which can accompany migraine, eye inflammation, or meningitis....
Pale Skin
Unusually light or pale skin that can be a sign of anemia, reduced blood flow, or low blood pressure....
Sore Throat
Pain, scratchiness, or irritation of the throat that often worsens when swallowing, commonly caused by viral o...
Swollen Lymph Nodes
Enlarged lymph nodes that can occur with infection, immune reactions, or certain cancers....
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, prostat...
When to seek care
Seek care from a qualified healthcare provider if fever is severe, persistent, worsening, or accompanied by concerning symptoms. If you think you have a medical emergency, call your local emergency number immediately.
Frequently Asked Questions
What does the symptom fever mean?
Fever is a health sign or symptom described in medical literature. Body temperature elevated above the normal range.
Which conditions are associated with fever?
Fever has been reported in association with 200 conditions in the medical literature we index, including 3-hydroxy-3-methylglutaric aciduria, 3-methylcrotonyl-CoA carboxylase 1 deficiency, Acute disseminated encephalomyelitis, Acute intermittent porphyria, Acute interstitial pneumonia. These associations do not mean you have any of these conditions.
Should I see a doctor about fever?
You should discuss any persistent or concerning symptoms with a qualified healthcare provider. This website does not provide diagnosis. If you have severe symptoms or signs of a medical emergency, seek care immediately.