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  1. May 7, 2022 · A temperature taken using a mouth thermometer (oral temperature) that's 100 F (37.8 C) or higher is generally considered to be a fever. Depending on what's causing a fever, other fever signs and symptoms may include: Sweating. Chills and shivering. Headache.

  2. A fever is when your body temperature rises higher than normal. A fever itself isn’t an illness. Rather, it’s a symptom of a wide range of health conditions. When your body temperature rises a few degrees above normal, it can be a sign that your immune system has been activated, often to fight an infection. It can also be a side effect of ...

  3. A fever is not an illness but a symptom or sign of an illness or infection in your body. However, a fever is commonly accompanied by other symptoms including: Sweats or chills You might experience sweats or “chills” - feeling cold while shivering. These symptoms might be a sign that you have a fever. Headache

  4. Nov 15, 2023 · Fever Symptoms. A fever is a sign of an illness or infection. When you have one, you may notice these symptoms: Chills or shivering; Sweating; Body aches; Headache; Lethargy (feeling weak) Being ...

  5. A fever is the body's normal and healthy reaction to infection and other illnesses, both minor and serious. It helps the body fight infection. A fever is a symptom, not a disease. In most cases, having a fever means that you have a minor illness. When you have a fever, your other symptoms will help you know how serious your illness is.

  6. Jun 20, 2024 · Fever is usually a sign that your body is fighting an illness. But it may also happen when you have chronic conditions like autoimmune diseases and cancer or as a medication side effect.

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  8. Aug 21, 2024 · Fever is an elevation in the body's temperature. It's not a disease but rather a sign or response to something occurring within the body, most commonly an infection. Noninfectious conditions or scenarios like inflammatory diseases or medication reactions can also cause a fever.

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