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Ulcer

An ulcer is a sore that develops on the skin or a mucous membrane (such as inside the mouth, stomach, or intestines). Ulcers can be shallow or deep and can destroy the skin or the membrane where they develop.

Ulcers can be caused by some types of infection, injury, or cancer.

Last Revised: April 27, 2011

Author: Healthwise Staff

Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & H. Michael O'Connor, MD - Emergency Medicine

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