Pus discharge from anus usually happens due to infection. Inside the anal canal, there are small glands. These glands help in easy passage of stool. Sometimes, these glands get blocked. Once blocked, bacteria can grow inside them, leading to infection.
An anal fistula is like a small tunnel. It forms between the inside of the anal canal and the skin near the anus. Most fistulas start after an anal abscess does not heal fully. A small channel is left behind, and infection keeps coming out from it.
A fistula is an abnormal connection between two organs or between an organ and the skin. While some fistulas are simple, others are complex, with multiple branches or hidden tracts.
When dealing with persistent pain, discharge, or swelling near the anal region, many patients feel confused and uncomfortable seeking help.
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