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     theborneopost.com

     Illnesses and infections

     • The main causes of a fever, also called pyrexia, include illnesses and infections, such as a cold, COVID-19, or the flu. Other culprits might include certain medications, cancerous tumors, heat-related illnesses, and immunization.
     www.health.com › condition › flu

     Fever (Pyrexia): 6 Main Causes - Health

2. www.mayoclinic.org › diseases-conditions › feverFever - Symptoms & causes - Mayo Clinic

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   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. People also ask

   What causes a high fever?

   • 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). Some causes may be more serious and require immediate medical care.

   High Fever: Causes and Treatments for a High Temperature - Healthgra…

   www.healthgrades.com/right-care/symptoms-and-conditions/high-fever

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   Can a high temperature cause a fever?

   • You may have a fever if your temperature rises above this. Adults typically have a fever if their body temperature increases to 100.4°F (38°C). This is called a low grade fever. A high grade fever happens when your body temperature is 103°F (39.4°C) or above. Most fevers usually go away by themselves after 1 to 3 days.

   Fever in Adults: Characteristics, Types, and When It's Serious - Healthline

   www.healthline.com/health/cold-flu/fever-in-adults

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   What happens if you have a high fever?

   • A very high fever can cause confusion, extreme sleepiness, irritability, and seizures. To help determine why you have a fever, your doctor will ask you about: recent travel, particularly travel abroad. By itself, fever is usually harmless, though a high fever can be miserable.

   Fever in adults: when to worry - Harvard Health

   www.health.harvard.edu/diseases-and-conditions/treating-fever-in-adults

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4. www.health.harvard.edu › treating-fever-in-adultsFever in adults: when to worry - Harvard Health

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   May 22, 2023 · 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.

   • Email: hhp_info@health.harvard.edu

5. www.webmd.com › first-aid › fevers-causes-symptomsFever: Causes, Symptoms, and Treatment - WebMD

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   Nov 15, 2023 · A fever can be a sign of several health conditions, which may or may not need medical treatment. The most common causes are infections such as colds and stomach bugs...

6. www.healthgrades.com › high-feverHigh Fever: Possible Causes and Treatments - Healthgrades

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   Jul 25, 2022 · There are many causes of a high fever, including common conditions such as a sore throat, sinusitis, and urinary tract infections (UTIs). Some causes may be more serious and require immediate medical care.

7. my.clevelandclinic.org › health › symptomsFever Symptoms & Causes: What Is Considered a Fever?

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   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:

8. www.healthline.com › health › cold-fluFever in Adults: Characteristics, Types, and When It's Serious

   www.healthline.com › health › cold-flu

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   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.

9. www.buoyhealth.com › learn › fever10 Reasons You Have a Fever - Buoy Health

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   Apr 25, 2024 · Illnesses that can cause a fever range from the common cold and sore throat to more serious conditions like pneumonia and appendicitis. A persistent low-grade fever may be the first sign of diseases such as lupus or certain cancers like lymphoma. Fever is different from hyperthermia.