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Find information on medical topics, symptoms, drugs, procedures, news and more, written in everyday language.

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Lip Sores

By David F. Murchison, DDS, MMS

A raised area or a sore with hard edges on the lip may be a form of skin cancer (Home.heading on page Mouth and Throat Cancer and see Overview of Skin Cancer). Other sores may develop as symptoms of other medical conditions, such as oral herpes simplex virus infection (cold sores—see Oral infection) or syphilis. Still others, such as keratoacanthoma, have no known cause.

* This is the Consumer Version. *