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Fever
Elevated body temperature, usually a sign of infection.
Red Flags
If you experience these, seek immediate medical attention.
- •Fever over 104°F (40°C)
- •Seizure
- •Meningitis signs (stiff neck, confusion, sensitivity to light)
- •Difficulty breathing
Overview
A fever is a temporary increase in body temperature, part of the immune response. High fevers can be dangerous.
Possible Causes
Viral Infection (Flu, Cold)
Self-limiting viral illness.
Bacterial Infection
Strep throat, UTI, etc., often requiring antibiotics.
COVID-19
Respiratory virus with wide range of symptoms.
Home Care
- Rest and fluids.
- Acetaminophen or ibuprofen.
- Dress in light clothing.
Research cited
Sources for this page are being compiled. Each research summary on Body Signals is backed by peer-reviewed literature — source links will be added as part of our ongoing editorial review.
Sidebar
When to see a doctor
- •Temperature > 103°F (39.4°C).
- •Fever lasts > 3 days.
- •Severe headache or rash accompanies fever.
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Medical Disclaimer
This is a research summary, not medical advice. Body Signals is an independent research digest — it summarises published research for informational purposes and is not a healthcare provider. Consult a qualified healthcare provider before making changes to diet, exercise, supplements, or medication — especially if you have existing conditions or take prescription drugs.