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Anal fistula

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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.

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This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.