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May 22, 2023 · Causes of fever. An infection, such as the flu, is the most common cause of fever. Other conditions can also cause a fever. These include diseases that produce inflammation, such as rheumatoid arthritis; reactions to drugs or vaccines; and even certain types of cancers. Accompanying symptoms. The following symptoms may also accompany fever ...
- hhp_info@health.harvard.edu
Sep 17, 2019 · 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 more serious illness.
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.
May 31, 2023 · What are the most common causes of fever? A fever has many causes and can be a symptom of almost any illness. Common conditions that cause fever include: Bacterial infections. Viral infections such as influenza or COVID-19. Gastrointestinal (GI) infections. Urinary tract infections. Skin infections. You may also develop a fever due to:
Mar 31, 2020 · Severe illness can cause extremely high temperatures in adults that can be life threatening. A high-grade fever from a rectal measurement is typically 104.1–106.0°F (40–41.1°C).
- Rachel Nall, MSN, CRNA
Nov 15, 2023 · Fever in adults: When to worry Call your doctor or visit urgent care or an emergency room if: You have a temperature of 103 F or higher. ... Types of Fever. Fevers have a wide range of causes, and ...
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Jun 20, 2024 · If you're an older adult, serious infections tend to cause symptoms such as confusion or weight loss rather than fever. Doctors consider a temperature that’s 2 degrees higher than usual to be a ...
