A fever is typically defined as a body temperature above 100.4°F (38°C). While fevers are a common response to infections, they can be concerning in certain situations:
Infants under 3 months: A fever of 100.4°F (38°C) or higher requires immediate medical attention. Children 3-6 months: Seek medical advice for a fever of 102°F (38.9°C) or higher. Children 6 months and older: A fever above 103°F (39.4°C) warrants medical evaluation.
Other concerning symptoms include persistent fever lasting more than 3 days, difficulty breathing, rash, lethargy, or dehydration.
