An anal fissure is a small split or tear in the thin moist tissue lining the lower rectum anus .

An anal fissure is a crack or tear in the skin of the anal canal. Anal fissures may be noticed by bright red anal bleeding on the toilet paper, sometimes in the toilet.

Painful tear in the anal canal. Itching and bleeding is common. Anal fissure pictures. Prevention, medical surgical treatments discussed.

Anal fissure — Comprehensive overview covers symptoms, causes, treatment of this often painful tear.