Cancer of the lip and oral cavity is a disease in which cancer cells are found in the tissues of the lip or mouth.

The oral cavity includes the front two-thirds of the tongue, the upper and lower gums (the gingiva), the lining of the inside of the cheeks and lips (the buccal mucosa), the bottom (floor) of the mouth under the tongue, the bony top of the mouth (the hard palate), and the small area behind the wisdom teeth (the retromolar trigone).

Cancers of the head and neck are most often found in...