Dengue hemorrhagic fever

Symptoms during onset may be mild, but gradually worsen after a number of days. DHF can result in death if not treated in time. Mild dengue fever symptoms may occur in DHF, as well as the ones listed below:

• Bleeding from your mouth/gums
• Nosebleeds
• Clammy skin
• Considerably damaged lymph and blood vessels
• Internal bleeding, which can result in black vomit and feces (stools)
• Lower number of platelets in blood - these are the cells that help clot your blood
• Sensitive stomach
• Small blood spots under your skin
• Weak pulse

Dengue shock syndrome - This is the worst form of dengue which can also result in death, again mild dengue fever symptoms may appear, but others likely to appear are:

• Intense stomach pain
• Disorientation
• Sudden hypotension (fast drop in blood pressure)
• Heavy bleeding
• Regular vomiting
• Blood vessels leaking fluid
• Death