Anal fistulas happen twice as often in men than women. They're most common in adults around age 40, but they can occur in younger people, especially those with Crohn's disease. Common symptoms of ...

When this pus drains, it can form a tunnel, which is the fistula. This condition is fairly common, especially in men. If you get an infected anal gland, there's a good chance you'll develop a fistula.

Obstetric fistula is a hole between the birth canal and bladder or rectum, caused by prolonged, obstructed labour without access to timely, high-quality medical treatment. It leaves women and ...