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Symptoms
By Mayo Clinic staffMany 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.
- Frequently asked questions: Dengue. Centers for Disease Control and Prevention. http://www.cdc.gov/Dengue/faqFacts/index.html. Accessed July 21, 2011.
- Rothman AL. Clinical presentation and diagnosis of dengue virus infections. http://www.uptodate.com/home/index.html. Accessed July 21, 2011.
- Nathan MB, et al. Dengue: Guidelines for diagnosis, treatment, prevention and control. Geneva, Switzerland: World Health Organization; 2009. Accessed July 27, 2011.
- Vaughn DW, et al. Dengue and dengue hemorrhagic fever. In: Mandell JE, et al. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa.: Churchill Livingstone Elsevier; 2010. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-443-06839-3..X0001-X--TOP&isbn=978-0-443-06839-3&uniqId=230100505-57. Accessed July 27, 2011.
- Dengue and dengue hemorrhagic fever. World Health Organization. http://www.who.int/mediacentre/factsheets/fs117/en. Accessed July 27, 2011.
- Bell M. Viral hemorrhagic fevers. In: Goldman L, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/191371208-2/0/1492/0.html#. Accessed July 27, 2011.
- Rothman AL. Prevention and treatment of dengue virus infection. http://www.uptodate.com. Accessed Aug. 3, 2011.
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