A member asked:

What are the differences between anorectal fistula and abscess?

A doctor has provided 1 answer
Dr. Eduardo Krajewski answered

Specializes in Colon and Rectal Surgery

Usually, a perianal abscess is caused by an underlying fistula. A fistula is a tunnel that communicates the inside of the Anus and the outside skin. The entrance is inside the anus and the exit is at the skin. When the exit is closed, the Pus collects beneath the skin forming and abscess and it usually ruptures or is open by a physician. Fistulas have a 50% healing rate after drainage of the absce

Answered Feb 28, 2018

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