An anal sphincterotomy involves making an incision in the sphincter muscle in order to treat chronic anal fissures (painful tears in the lining of the anus).
- general or local anesthesia may be used
- procedure may also involve removal of any skin tags near the anal fissure
- surgeon will make a small cut on the anal sphincter muscle, allowing it to relax, stretch and take pressure off of the fissure
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