Fever in Adults - Infections - MSD Manual Consumer Version - high fever adults

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Fever - Symptoms and causes - Mayo Clinic high fever adults


For an adult, a fever may be uncomfortable, but usually isn't a cause for . Some medications, such as antibiotics and drugs used to treat high.

A fever in adults is usually not something to worry about, but if the fever is very high or lasts for longer than 3 days, it could be the cause of a.

Your normal body temperature is approximately 37C (F). A fever is usually when your body temperature is 38C (F) or more. By increasing your body’s temperature, a fever makes it harder for the bacteria and viruses that cause infections to survive.

Fever is part of your body's defense against infection-causing germs. By itself, fever is usually harmless, though a high fever can be miserable.