Oral Cancer

The mouth and throat

This booklet is about cancers that occur in the mouth (oral cavity) and the part of the throat at the back of the mouth (oropharynx). The oral cavity and oropharynx have many parts:

  • Lips


  • Lining of your cheeks


  • Salivary glands (glands that make saliva)


  • Roof of your mouth (hard palate)


  • Back of your mouth (soft palate and uvula)


  • Floor of your mouth (area under the tongue)


  • Gums and teeth


  • Tongue


  • Tonsils


Patient Comments

Viewers share their comments

Oral Cancer - Symptoms Question: What are the symptoms of your oral cancer?
Oral Cancer - Risk Factors Question: What were your risk factors for oral cancer?
Oral Cancer - Side Effects Question: Oral cancer treatment can make chewing and talking difficult. What side effects have been challenging for you?
Oral Cancer - Treatment Question: What types of treatment or surgery have you had to treat your oral cancer?
Learn about prevention of oral cancer.

Oral Cancer Prevention

Oral cancer is sometimes associated with known risk factors for the disease. Many risk factors can be modified but not all can be avoided.

  • Tobacco and alcohol use: Tobacco use (cigarettes, pipes, cigars, and smokeless tobacco) is responsible for most cases of oral cancer. Alcohol, particularly beer and hard liquor, are associated with an increased risk of developing oral cancer. The risk of developing oral cancer is higher in people who use both tobacco and alcohol. Avoiding or stopping the use of tobacco decreases the risk of oral cancer. It is not known if stopping the use of alcohol decreases the risk of oral cancer.


  • Sun exposure: Exposure to sunlight may increase the risk of lip cancer, which occurs most often on the lower lip. Avoiding the sun and/or using a sunscreenor colored lipstick on the lips may decrease the risk of lip cancer.


  • Other factors: Some studies suggest that being infected with the human papillomavirus (HPV) may increase the risk of oral cancer.


  • Chemoprevention: Chemopreventionis the use of drugs, vitamins, or other agents to prevent or delay the growth of cancer or to keep it from coming back. Tobacco users who have had oral cancer often develop second cancers in the oral cavity or nearby areas, including the nose, throat, vocal cords, esophagus, and windpipe. Studies of chemoprevention in oral cancer are under way, including chemoprevention of leukoplakia and erythroplakia.

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