A colovesical fistula is an open connection between the colon and bladder. A thick wall of tissue normally separates the two. Fecal matter from the colon can enter the bladder through this colovesical ...

Anal fistula is a health condition involving the presence of fistula in the anal or rectal area that can be diagnosed based on the presenting symptoms and physical findings. There are also several ...

Almost 90% of all anal abscesses are caused by blocked glands that become infected. The most common type of anal abscess is a perianal abscess, which typically appears as a painful swelling near the ...