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Tongue Sores and Bumps

By

Bernard J. Hennessy

, DDS, Texas A&M University, College of Dentistry

Last full review/revision May 2020| Content last modified May 2020
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Sores (blisters and ulcers) on the tongue can be caused by

The side of the tongue may develop a bump into the space between missing teeth. Although small bumps on both sides of the tongue are usually harmless, a bump on only one side should be examined to see if it is cancerous.

Unexplained red or white areas, sores, or lumps (particularly when hard) on the tongue—especially if painless—may be signs of cancer and should be examined by a doctor or dentist. Most oral cancers grow on the sides of the tongue or on the floor of the mouth. Cancer almost never appears on the top of the tongue, except when the cancer occurs after untreated syphilis.

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