A fever is a temporary increase in your body temperature, often due to For an adult, a fever may be uncomfortable, but usually isn't a cause.
A fever is a rise in body temperature. It's usually a sign Adults with fevers of 103 F (39.4 C) or higher will generally look and act sick. The main.
A temperature above normal but below 100.4 F (38 C) is sometimes considered a low-grade or mild fever. It may mean that.
A fever is a body temperature of 100.4 F or greater. Read about causes of fever in adults, symptoms, treatment, medications that may cause fevers, and different.
Symptoms of a fever. Doctors consider a fever to be a body temperature that reaches or exceeds 100.4°F. Other symptoms.