Fissure in Ano


Anal Fissure

Anal Ulcer

Anal Ulcers

Fissure, Anal

Ulcer, Anal

Ulcers, Anal

A painful linear ulcer at the margin of the anus. It appears as a crack or slit in the mucous membrane of the anus and is very painful and difficult to heal. (Dorland, 27th ed & Stedman, 25th ed)