What is considered a fever in an adult

This guide is intended for adults who have an abnormally elevated temperature. Although we think of normal body temperature as Since body temperature rarely climbs above While temperatures between

For most adults, this is a familiar roller coaster experience where all signs and symptoms point in one direction: the onset of a fever. What temperature is a fever? The average normal body temperature for an adult is Most medical professionals consider a temperature above How long will a fever last? The length of a fever can vary significantly — in some cases it can last a few hours, while in other circumstances it can be drawn out over several days. Among a long list of possibilities, common triggers include: respiratory infections such as a flu or cold, or an ear or sinus infection.

A fever is a common side effect of illness like the flu. It happens when there is a temporary rise in body temperature. A fever is usually a sign that your immune system is busy fighting an infection or other illness. In babies and toddlers even a slight fever may be a sign of a serious illness. In adults a fever is not usually serious or life-threatening.

The average body temperature is But "normal" body temperature varies from person to person. It also changes during the day, rising a bit after you eat or exercise. Body temperature is often higher in the afternoon than it is when you wake up in the morning. Fever means a body temperature of