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May 22, 2023 · High fever in adults. While any temperature above your normal temperature range is considered a fever, there are different levels of fever severity: Low-grade: 99.1 to 100.4 F (37.3 to 38.0 C) Moderate-grade: 100.6 to 102.2 F (38.1 to 39.0 C) High-grade: 102.4 to 105.8 F (39.1 to 41 C).
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Jul 25, 2022 · High Fever: Possible Causes and Treatments. 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).
May 7, 2022 · The average temperature has traditionally been defined as 98.6 F (37 C). A temperature taken using a mouth thermometer (oral temperature) that's 100 F (37.8 C) or higher is generally considered to be a fever. Depending on what's causing a fever, other fever signs and symptoms may include: Sweating.
Mar 7, 2024 · These conditions cause fever by disrupting the part of the brain that functions as the body's thermostat, called the hypothalamus. When using an oral thermometer, 98.6 degrees Fahrenheit (F) is considered a normal body temperature. Anything above 99.1 F is considered a fever in adults and children.
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.
Aug 21, 2024 · Symptoms. Fever: What’s Considered Low, High, and Possibly Serious? By Colleen Doherty, MD. Updated on August 21, 2024. Medically reviewed by Sameena Zahoor, MD. Print. Table of Contents. View All. Normal Temperature. Fever. At-Home. School or Work. When to See a Provider. Fever is an elevation in the body's temperature.
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Find out about high temperature (fever) in adults including what causes it, how to tell if you have a high temperature and how to treat it.