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There are several common symptoms of an anal fistula.
If your fistula was caused by anÂ abscessÂ that you still have, you may have:
If your fistula was caused by inflammation of the intestines (part of your digestive system)Â â€“Â for example, because of a condition such asÂ Crohn's diseaseÂ â€“Â you may also have:
Read more information about the causes of an anal fistula.
An anal fistulaÂ is usually classified as:
The sphincter muscles are two rings of muscles that open and close the anus. They are known as the internal and external sphincter muscles.
The most common types of anal fistula are:
Other types of anal fistula can:
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