Fever at Night
Educational information about fever at night, including conditions reported in association with fever and the tests providers may use to investigate. Content is informational only - not a diagnosis.
Fever at Night
Body temperature elevated above the normal range.
The meaning of fever at night depends on your overall health, medical history, and any other symptoms you may have.
Conditions associated with fever
These conditions have been reported in association with fever in medical literature. Informational, not a diagnosis.
Appendicitis
Inflammation of the appendix, a medical emergency, causing pain that migrates to the lower right abdomen....
Cellulitis
A bacterial skin infection causing redness, swelling, warmth, and pain, which can spread and become serious....
Chickenpox
A highly contagious viral infection causing an itchy, blister-like rash, most common in children....
Diverticulitis
Inflammation or infection of pouches in the colon wall, causing lower abdominal pain, fever, and changes in bo...
Ear Infection (Otitis Media)
Infection or inflammation of the middle ear, common in children, causing ear pain, fever, and sometimes fluid ...
Endocarditis
Infection of the inner lining of the heart chambers and valves, which can cause fever, fatigue, and heart murm...
Epiglottitis
Inflammation and swelling of the epiglottis that can block the airway, a medical emergency....
Food Poisoning
Illness caused by consuming contaminated food or water, causing nausea, vomiting, diarrhea, and abdominal cram...
Gallbladder Disease
Conditions affecting the gallbladder including gallstones and cholecystitis, causing upper right abdominal pai...
Gallstones
Hardened deposits of digestive fluid that form in the gallbladder and can block the bile duct, causing severe ...
Genital Herpes
A common sexually transmitted viral infection causing recurrent outbreaks of painful blisters or sores in the ...
Giant cell arteritis
Giant cell arteritis is a medical condition that may be associated with various symptoms and signs....
Tests providers may use to investigate fever
Healthcare providers may order these tests when evaluating fever.
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 ...
Gastrointestinal Health Tests
Fast, easy and affordable gastrointestinal lab tests-- no insurance or a doctor's referral needed. Simply orde...
Genital Herpes Hsv-2 Blood Test
This HerpeSelect® test looks for the specific antibodies that fight the herpes-2 virus (HSV-2) in your blood. ...
Frequently Asked Questions
Why does fever get worse at night?
Fever at night can have a range of causes. Body temperature elevated above the normal range. Discuss persistent symptoms with a qualified healthcare provider.
When should I see a doctor about fever at night?
See a qualified healthcare provider if fever at night is persistent, worsening, or interfering with daily life, or if it occurs with other concerning symptoms.