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Aug 9, 2023 · High temperature (fever) is caused by the release of certain chemicals by the immune system, usually as a result of infection or inflammation. Most fevers are caused by infections or other illnesses. Viral infections are the commonest causes of a fever.
Aug 4, 2022 · A fever is defined as a body temperature above 100.4°F (38.3°C). The normal oral temperature for a resting, healthy adult is about 98.6°F (37°C). However, what is considered a “normal” body temperature can vary by one degree based on age, race, and other factors.
Jul 25, 2022 · A high fever is when body temperature rises above 103ºF (39ºC) in an adult or above 101ºF (38ºC) in a child. There are many causes of a high fever, including common conditions such as a sore throat , sinusitis , and urinary tract infections (UTIs).
Nov 15, 2023 · A fever is when you have a brief rise in body temperature that’s higher than your normal body temperature. It’s also called a high temperature, hyperthermia, or pyrexia.
May 31, 2022 · Fever is an increase in your body’s temperature to a range that is above typical levels. While normal body temperature naturally fluctuates throughout the day by a few degrees, a fever can indicate illness or infection. It is normal for body temperature to change throughout the day by a few degrees or less.
- An axillary temperature, a temperature reading taken from the armpit, can give slightly lower readings than other body sites, such as from the mout...
- COVID-19 can lead to a fever as your body deals with the underlying infection. A high temperature, no matter the cause, usually includes temperatur...
- The definition of a fever can vary by medical institution. Many healthcare bodies, such as the CDC, define fever as a body temperature of 100.4°F (...
Mar 15, 2023 · Fever occurs when your body temperature is elevated, often due to an illness. A fever is a response to inflammation and a reaction to foreign invaders in the body. A fever's purpose is to help the body fight off bacteria and viruses. Most fevers are treatable at home, but there are some that require medical attention.
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What does a high fever mean?
Check if you have a high temperature. You may have a high temperature if: your chest or back feel hotter than usual. you have other symptoms, such as shivering (chills), sweating or warm, red skin (this may be harder to see on black or brown skin) a thermometer says your temperature is 38C or above.
