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Definition of Aphthous Ulcer

From , former About.com Guide

Updated June 22, 2009

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Definition:

More commonly known as a canker sore, an aphthous ulcer is a non-contagious sore or lesion that develops on the soft tissues inside the mouth.

There are three different types of aphthous ulcers. The causes associated with aphthous ulcers vary considerably.

Treatments and remedies are used to ease the pain and speed up healing time, although these sores do tend to heal well on their own.

Also Known As:

Canker sores

Cankers

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