Tobacco damages the ft tissues in your mouth and can lead to mouth cancer. Sometimes, even relatively harmless-looking red or ite patchein the mouth can become cancerous. The most common sites for mouth cancers are the lip, cheek, and tongue.
The risk of developing cancer of the mouth, larynx, pharynx, nd esophagus is significantly higher for smokers than for nonsmokers.
About 30,000 people are diagnosed and treated for oral cancer each year in the United States./>