Fistula in ano

A fistula in ano is a track, lined by infective tissue which connects deeply from the anal canal or rectum to the skin superficially. It usually results from the bursting or surgical drainage of a perianal abscess. These fistulae may at times be found in association with specific conditions like Crohn’s disease, tuberculosis or rectal malignancies.

Patients usually present with intermittent purulent or bloody discharge, sometimes a painful swelling at the external opening which is painful, till it ruptures and discharges pus. The pain subsides after this and subsequently, the cycle repeats itself.

Patients usually present with intermittent purulent or bloody discharge, sometimes a painful swelling at the external opening which is painful, till it ruptures and discharges pus. The pain subsides after this and subsequently, the cycle repeats itself.