Fever lasting over 3 days? Don't ignore these warnings from doctors

A fever defined as temperature above 100°F (38°C) lasting over 3 days may signal underlying illness requiring medical intervention.

Doctors emphasize evaluating fever pattern (constant or intermittent) and associated symptoms like chills or sweating, not just temperature.

Children, older adults, pregnant women, and those with chronic conditions (diabetes, kidney disease, heart disease) are at higher risk for complications from prolonged fever.

During rainy/post-rainy seasons, persistent fever may indicate diseases such as malaria, typhoid fever, dengue, leptospirosis, or influenza.

Persistent fever can also result from bacterial infections (urinary tract infection, pneumonia, tuberculosis) or rarely from neoplasia.