Ulcer

Healthwise
By Jeannette Curtis; Caroline Rea, RN, BS, MS

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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.

Author:Jeannette Curtis
Caroline Rea, RN, BS, MS
Medical Review:
Last Updated: 05/25/2007

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