An anal fissure is a tear in the lining of the anal canal, or a cut or tear in the anus region, that extends into the anal canal. It can result from constipation, anal sex, infections, and other ...
An anal fissure is a small tear in the thin, moist tissue (mucosa) that lines the anus. An anal fissure may occur when you pass hard or large stools during a bowel movement. Anal fissures typically ...