General Information About Oral Cancer
Key Points for This Section
Oral cancer is a disease in which malignant (cancer) cells form in the lips, mouth, or throat.
Oral cancer may form in any of three main areas:
Most oral cancers start in squamous cells (thin, flat cells) that line the lips, oral cavity, and oropharynx. Cancer that forms in squamous cells is called squamous cell carcinoma. Squamous cell carcinoma can form from lesions on the mucous membranes (the lining of the mouth and throat). These lesions include leukoplakia (an abnormal white patch of cells) and erythroplakia (an abnormal red patch of cells).
In Western countries, such as the United States, the most common areas for oral cancer are the tongue and the floor of the mouth.
Oral cancer is more common in men than in women.
Men are more than twice as likely as women to have oral cancer and die from it.