File:Symptoms-fever.jpg · Wikimedia Commons · See Wikimedia Commons
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Also known as pyrexia, febrile response, pyrrhexia
Fever or pyrexia in humans is a symptom of an anti-infection defense mechanism that appears with body temperature exceeding the normal range caused by an increase in the body's temperature set point in the hypothalamus. There is no single agreed-upon upper limit for normal temperature: sources use values ranging between in humans.
AI overview
A fever is when your body's temperature rises above normal because your brain's temperature control center increases its set point as part of your body's defense against infection. While there's no single agreed-upon definition of exactly where normal temperature ends and fever begins, this elevated temperature is an important sign that your immune system is responding to fight off illness.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Medical condition.name
- Fever
- Medical condition.synonyms
- Pyrexia, febrile response, febrile
- Medical condition.image
- Symptoms-fever.jpg
- Medical condition.caption
- Person with fever
- Medical condition.field
- Infectious disease, pediatrics
- Medical condition.symptoms
- Initially: shivering, feeling cold, chillsLater: flushed, sweating
- Medical condition.complications
- Febrile seizure
- Medical condition.causes
- Virus, bacteria, increase in the body's temperature set point
- Medical condition.diagnosis
- Temperature higher than the normal range of
- Medical condition.differential
- Hyperthermia
- Medical condition.treatment
- Based on underlying cause, not required for fever itself