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  2. May 7, 2022 · Fever or elevated body temperature might be caused by: A viral infection; A bacterial infection; Heat exhaustion; Certain inflammatory conditions such as rheumatoid arthritis inflammation of the lining of your joints (synovium) A cancerous (malignant) tumor; Some medications, such as antibiotics and drugs used to treat high blood pressure ...

  3. Nov 16, 2023 · Fever Symptoms. What Causes Fever? 6 min read. What Is a Fever? A fever is a sure sign your body is fighting off some type of infection. (Photo credit: E+/Getty Images) A fever is when...

  4. 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 ...

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  5. Sep 17, 2019 · This may help your doctor find out the cause. Common causes of a fever in adults are: viral infection (like the flu or a cold) bacterial infection; fungal infection; food poisoning;...

  6. 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:

  7. Jul 25, 2022 · Symptoms and Conditions. High Fever: Possible Causes and Treatments. Infection. Heat exhaustion. Sepsis. Drug reaction. Noninfectious conditions. Fever of unknown origin. In children. Contacting a doctor. Treatment. FAQ. Summary. A high fever is when body temperature rises above 103ºF (39ºC) in an adult or above 101ºF (38ºC) in a child.

  8. Home Health Conditions and Diseases. Fever. What is a fever? A fever is a body temperature that is higher than normal. It usually means there is an abnormal process occurring in the body. Exercise, hot weather, and common childhood immunizations can also make body temperature rise. What causes a fever? A fever is not an illness by itself.

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