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 you are bitten by an infected mosquito. Signs and symptoms of dengue fever most commonly include:
- Fever, as high as 106 F (41 C)
- Muscle, bone and joint pain
- Pain behind your eyes
You might also experience:
- Widespread rash
- Nausea and vomiting
- Rarely, minor bleeding from your gums or nose
Most people recover within a week or so. In some cases, symptoms worsen and can become life-threatening. Blood vessels often become damaged and leaky. And the number of clot-forming cells (platelets) in your bloodstream drops. This can cause:
- Bleeding from your nose and mouth
- Severe abdominal pain
- Persistent vomiting
- Bleeding under the skin, which might 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.
April 20, 2016
- Ferri FF. Ferri's Clinical Advisor 2015: 5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2015. https://www.clinicalkey.com. Accessed July 18, 2014.
- Papadakis MA, ed., et al. Current Medical Diagnosis & Treatment 2014. 53rd ed. New York, N.Y.: The McGraw-Hill Companies; 2014. http://accessmedicine.mhmedical.com/book.aspx?bookId=330. Accessed June 28, 2014.
- Nathan MB, et al. Dengue: Guidelines for diagnosis, treatment, prevention and control. Geneva, Switzerland: World Health Organization; 2009. http://www.who.int/rpc/guidelines/9789241547871/en/. Accessed July 19, 2014.
- Sinha G. Sanofi's dengue vaccine first to complete phase 3. Nature Biotechnology. 2014;32:605.
- Rothman AL. Prevention and treatment of dengue virus infection. http://www.uptodate.com/home. Accessed July 14, 2014.
- Capeding MR, et al. Clinical efficacy and safety of a novel tetravalent dengue vaccine in healthy children in Asia: A phase 3, randomised, observer-masked, placebo-controlled trial. The Lancet. In press. Accessed July 18, 2014.