Things You Need to Know about Anal Fistula: Causes and Types
What is an anal fistula?
An anal fistula is a small abnormal tunnel/cavity/tract that forms between the end of the bowel (anal canal) and the perianal skin. This occurs due to an infection surrounding the anus causing an accumulation of pus (perennial abscess) or infection/clogging of the anal glands. The track keeps draining leading to discomfort and irritation of the skin or may get temporarily blocked forming a boil/abscess.
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