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   Is a fever a sign of a serious illness?

   • In adults a fever is not usually serious or life-threatening. However, sometimes a fever in adults can be a warning signal that something is not right. A high or persistent fever might be a sign of a serious health condition. What is a fever? A fever is normally a short-term rise in temperature that helps your body get rid of illness.

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

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

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

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   May 22, 2023 · When to worry about fever. If you have a fever over 104°F (40°C), you should call your doctor. Seek medical help right away if you have a fever along with any of these symptoms: seizure; loss of consciousness; confusion; stiff neck; trouble breathing; severe pain anywhere in the body; swelling or inflammation of any part of the body

   • Location: 4 Blackfan Circle, 4th Floor, Boston, 02115, MA
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3. www.healthpages.org › health-a-z › fever-adults100, 101 or 102 Degree Fever? Adult Guide to High Temperatures

   www.healthpages.org › health-a-z › fever-adults

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   Aug 4, 2022 · Here's what you need to know about fever in adults: What the possible causes are, temperature ranges and when to be concerned, how to make sure the temperature reading is accurate, when you need to see a doctor, stages of fever and how to treat a fever.

4. 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 · 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...

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

   www.mayoclinic.org › diseases-conditions › fever

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   May 7, 2022 · A fever is a temporary rise in body temperature. It's one part of an overall response from the body's immune system. A fever is usually caused by an infection. For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern.

6. www.mayoclinic.org › diseases-conditions › feverFever treatment: Quick guide to treating a fever - Mayo Clinic

   www.mayoclinic.org › diseases-conditions › fever

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   Feb 26, 2022 · A fever is a common sign of illness, but that's not necessarily a bad thing. In fact, fevers seem to play a key role in fighting infections. So should you treat a fever or let the fever run its course?

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

   www.webmd.com › first-aid › fevers-causes-symptoms

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   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.

8. www.medicalnewstoday.com › articles › fever-in-adultsFever in adults: Symptoms, treatment, and when to seek help

   www.medicalnewstoday.com › articles › fever-in-adults

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   Mar 31, 2020 · As a general rule, adults should consider seeking medical attention if their temperature reaches above 104 °F (40°C). Doctors consider this temperature to be a high-grade fever. However,...