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Fever

A fever is a body temperature that is higher than normal. A normal temperature can vary from person to person, but it is usually around 98.6 °F (37 °C). A fever is not a disease. It is usually a sign that your body is trying to fight an illness or infection.

cause most fevers. You get a fever because your body is trying to kill the virus or bacteria that caused the infection. Most of those bacteria and viruses do well when your body is at your normal temperature. But if you have a fever, it is harder for them to survive. Fever also activates your body's immune system.

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Results 1 - 10 of 4,838 for Fever
  1. Fever (National Library of Medicine)  
    A fever is a body temperature that is higher than normal. A normal temperature can vary from person to ... usually around 98.6 °F (37 °C). A fever is not a disease. It is usually a ...
    https://medlineplus.gov/fever.html - Health Topics
  2. Dengue (National Library of Medicine)  
    ... severe. The symptoms of dengue include: A high fever Nausea and vomiting Rash Aches and pains (eye ... usually begin about 24 - 48 hours after your fever has gone away. If you or your family ...
    https://medlineplus.gov/dengue.html - Health Topics
  3. Hemorrhagic Fevers (National Library of Medicine)  
    Viral hemorrhagic fevers (VHFs) are a group of illnesses caused by four families of viruses. These include the Ebola and Marburg, Lassa fever, and yellow fever viruses. VHFs have common features: ...
    https://medlineplus.gov/hemorrhagicfevers.html - Health Topics
  4. Cold Sores (National Library of Medicine)  
    Cold sores are caused by a contagious virus called herpes simplex virus (HSV). There are two types of HSV. Type 1 usually causes oral herpes, or cold sores. ...
    https://medlineplus.gov/coldsores.html - Health Topics
  5. Hay Fever (National Library of Medicine)  
    ... can trigger a type of allergy called hay fever. Symptoms can include: Sneezing, often with a runny ... eyes Your health care provider may diagnose hay fever based on a physical exam and your symptoms. ...
    https://medlineplus.gov/hayfever.html - Health Topics
  6. Valley Fever (National Library of Medicine)  
    Valley Fever is a disease caused by a fungus (or mold) called Coccidioides. The fungi live in the soil ... from person to person. Anyone can get Valley Fever. But it's most common among older adults, especially ...
    https://medlineplus.gov/valleyfever.html - Health Topics
  7. Ebola (National Library of Medicine)  
    ... virus disease (EVD), is a type of hemorrhagic fever. It is a rare and often deadly disease. ... 8 to 10 days. The symptoms usually include: Fever Headache Joint and muscle aches Weakness and fatigue ...
    https://medlineplus.gov/ebola.html - Health Topics
  8. Dengue Fever Test: MedlinePlus Medical Test 
    Dengue Fever Test What is a dengue fever test? Dengue fever is a viral infection spread to people through bites from infected mosquitos . You can't catch the virus from a ... are common. Why do I need a dengue fever test? You may need to be tested for ... restlessness, or irritable What happens during a dengue fever test? Your health care provider will ask about ...
    https://medlineplus.gov/lab-tests/dengue-fever-test - Medical Tests
  9. Infectious Mononucleosis (National Library of Medicine)  
    ... the same time. They can include: Extreme fatigue Fever Sore throat Head and body aches Swollen lymph ... Taking over-the-counter medications for pain and fever. But don't give aspirin to children or ...
    https://medlineplus.gov/infectiousmononucleosis.html - Health Topics
  10. Cat Scratch Disease (National Library of Medicine)  
    ... especially around the head, neck, and upper limbs Fever Headache Fatigue Poor appetite For people with weak ...
    https://medlineplus.gov/catscratchdisease.html - Health Topics
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