It starts as a painful swelling near the anus. After a few days, the swelling bursts, the pain reduces, and you think th

An anal fistula is a small, infected tunnel that develops between the end of the intestine and the skin near the anus. I

An anal fistula is a painful and uncomfortable condition that occurs when a small tunnel develops between the end of the

An anal fistula is a painful condition caused by an infected anal gland, which creates an abnormal tunnel between the in

An anal fistula is a small but troublesome tunnel that forms between the anal canal and the skin near the anus, most com