This publication discusses different types of anal fistulas.
Healthcare providers classify anal fistulas by where they are in relation to the anal sphincter muscles. These are the muscles that control bowel movements. There are specific names based on the fistula location. These include the following:
- Intersphincteric anal fistulas
- Transsphincteric fistulas
- Suprasphincteric fistulas
- Extrasphincteric fistulas
- Superficial anal fistulas
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