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May 22, 2023 · Fever means a body temperature of 100.4° F (38°C) or higher. While any temperature above your normal temperature range is considered a fever, there are different levels of fever severity: High-grade: 102.4 to 105.8 F (39.1 to 41 C). If you have a fever over 104°F (40°C), you should call your doctor.
- hhp_info@health.harvard.edu
May 7, 2022 · For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern. For infants, however, even a low fever may mean there's a serious infection. Fevers generally go away within a few days. A number of over-the-counter medications lower a fever.
Typically, if an infection is the cause of your fever, it should pass within three to four days. Call your healthcare provider if the fever lingers longer than that or comes along with breathing changes.
Jun 1, 2021 · Infections aren’t the only cause of fever in adults. Several non-infectious sources can make your body temperature go up too. Some non-infectious causes of a fever include stress , some immunizations, a serious sunburn , blood clots , and food poisoning.
Sep 17, 2019 · It is a sign that your body is dealing with an infection or other illness. In some cases a high or long-lasting fever can be a sign of a serious illness. You may need urgent medical treatment.
Mar 31, 2020 · Typhoid: Typhoid is a bacterial infection that can cause fever. Acute bacterial meningitis: This is a severe infection that requires emergency medical help. Urinary tract infection (UTI):...
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The degree of fever may not show how serious the illness is. With a minor illness, such as a cold, you may have a fever. But a very serious infection may cause little or no fever. It's important to look for and evaluate other symptoms along with the fever.