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Anal Fistula

An anal fistula is a passage (tract) from the anal canal to a hole in the skin near the anus. This abnormal condition may occur after rectal surgery, after an abscess in the rectal area, or as a complication of Crohn's disease (a form of inflammatory bowel disease).

Symptoms of an anal fistula include itchy, irritated skin from fluids passing out of the rectum through the hole in the skin. The fluid usually contains mucus and small amounts of blood. An anal fistula may become infected. When infection develops, an anorectal abscess can form.

When an anal fistula is suspected, a visit to a doctor is needed.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Arvydas D. Vanagunas, MD - Gastroenterology
Current as of October 8, 2012

WebMD Medical Reference from Healthwise

Last Updated: October 08, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.