What are the signs and symptoms of severe dengue (dengue hemorrhagic fever)?

Updated: May 03, 2019
  • Author: Darvin Scott Smith, MD, MSc, DTM&H; Chief Editor: Michael Stuart Bronze, MD  more...
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Of patients with dengue hemorrhagic fever, 90% are younger than 15 years. The initial phase of dengue hemorrhagic fever is similar to that of dengue fever and other febrile viral illnesses. Shortly after the fever breaks (or sometimes within 24 hours before), signs of plasma leakage appear, along with the development of hemorrhagic symptoms such as bleeding from sites of trauma, gastrointestinal bleeding, and hematuria. Patients may also present with abdominal pain, vomiting, febrile seizures (in children), and a decreased level of consciousness.

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