Are your kidneys affected by dengue fever?

Not usually: Dengue is a common viral infections spread by mosquitoes which bite during the day. Typically it cause extreme discomfort (headache, fever, muscle aches etc) sometimes it progresses to internal bleeding. Most kidney damage occurs when internal bleeding occurs, however, a few rare cases of kidney injury have been reported without the internal bleeding.

Yes: It is extremely common for renal complications to be part of the signs and symptoms of dengue fever.