What are the risk factors for mouth cancer?

Smoking, smokeless tobacco, and areca nut products can expose mouth tissues to substances that damage cells. Regular heavy alcohol use can add to this irritation, especially when combined with tobacco. Human papillomavirus can be linked with cancers in parts of the mouth and throat.

Some persistent mouth changes, including oral leukoplakia, may need monitoring because abnormal cells can develop within them. Oral submucous fibrosis can restrict mouth opening and is associated with areca-nut use. A risk factor does not diagnose cancer, and some people develop mouth cancer without a clear risk factor.

Avoid tobacco, smokeless tobacco, and areca-nut products; reducing alcohol can also lower harmful exposure. Arrange dental or medical review for a sore, ulcer, lump, red or white patch, unexplained bleeding, numbness, or difficulty chewing that does not settle. Regular mouth checks are especially useful when a persistent change is present.

Arrange prompt assessment for a mouth ulcer or patch that persists, a growing lump, unexplained bleeding, loose teeth, or new difficulty swallowing or opening the mouth. Seek urgent help if swelling affects breathing or swallowing.

Ask whether a mouth change needs examination, photography, dental review, or biopsy. Ask how to stop tobacco or areca nut, whether alcohol is affecting your risk, and when a follow-up check should happen.