Many people, especially children and teens, may experience no signs or symptoms during a mild case of dengue fever. When symptoms do occur, they usually begin four to 10 days after the person is bitten by an infected mosquito. Signs and symptoms of dengue fever most commonly include:

  • Fever, up to 106 F (41 C)
  • Headaches
  • Muscle, bone and joint pain
  • Pain behind your eyes

You might also experience:

  • Widespread rash
  • Nausea and vomiting
  • Minor bleeding from your gums or nose

Most people recover within a week or so. In some cases, however, symptoms worsen and can become life-threatening. Blood vessels often become damaged and leaky, and the number of clot-forming cells in your bloodstream falls. This can cause:

  • Bleeding from the nose and mouth
  • Severe abdominal pain
  • Persistent vomiting
  • Bleeding under the skin, which may look like bruising
  • Problems with your lungs, liver and heart

When to see a doctor

If you've recently visited a region in which dengue fever is known to occur and you suddenly develop a fever, see your doctor.

Sep. 30, 2011