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What complications can come from an anal abscess?

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About 50% of patients with an anal abscess will develop a complication called a fistula. A fistula is a small tunnel that makes an abnormal connection between the site of the abscess and the skin.

In some cases, an anal fistula causes persistent drainage. In other cases, where the outside of the tunnel opening closes, the result may be recurrent anal abscesses. Surgery is needed to cure almost all anal fistulas.

From: Anal Abscess WebMD Medical Reference

SOURCES:

Merck Manual Professional: "Anorectal Abscess."

Patient.co.uk: "Anorectal Abscess."

American Society of Colon & Rectal Surgeons: "Anal Abscess/Fistula."

MyClevelandClinic.org: "Anal Abscesses/Fistulae Overview."

Reviewed by Melinda Ratini on September 11, 2017

SOURCES:

Merck Manual Professional: "Anorectal Abscess."

Patient.co.uk: "Anorectal Abscess."

American Society of Colon & Rectal Surgeons: "Anal Abscess/Fistula."

MyClevelandClinic.org: "Anal Abscesses/Fistulae Overview."

Reviewed by Melinda Ratini on September 11, 2017

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What causes an anal abscess?

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