Anal fissure and fistula
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Anal fissure and fistula
An anal fissure is a narrow tear that extends from the muscles that control the anus (sphincters) up into the anal canal. These tears usually develop when anal tissue is damaged during a hard bowel movement or when higher-than-normal tension develops in the anal sphincters.
An anal fistula is a tubelike passage (tract) from the anal canal to a hole in the skin near the anus. This may occur after rectal surgery, after an abscess in the rectal area, or as a complication of a bowel disease.
Credits
| Primary Medical Reviewer | Kathleen Romito, MD - Family Medicine |
| Specialist Medical Reviewer | C. Dale Mercer, MD, FRCSC, FACS - General Surgery |
| Last Updated | May 30, 2008 |
| Last updated: | May 30, 2008 |
|---|---|
| Reviewed By: | Kathleen Romito, MD - Family Medicine, C. Dale Mercer, MD, FRCSC, FACS - General Surgery |
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