Fever in adults - Harvard Health - high fever in an adult

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When Is a Fever Dangerous? High Fever Warning Signs | UPMC high fever in an adult


Having a fever is a sign that something out of the ordinary is going on in your body. For an adult, a fever may be uncomfortable, but usually isn't.

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.

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.

A fever is a body temperature of F or greater. Read about causes of fever in adults, symptoms, treatment, medications that may cause fevers, and different.

When does a fever in adults require medical attention? Contact a doctor if the high body temperature lasts for more than 3 days or gets worse.