If you notice a painful bump on the roof of your mouth, it could be an abscess—an infection that forms when bacteria invade ...

Benign tumors of the oral cavity are atypical formations of noncancerous cells that grow in the mouth. They can look like sores or lumps, and they typically develop slowly. Benign oral tumors are ...

Lip cancer is an oral cancer that first develops on the lips, usually causing an open sore or painful lump. Initial warning ...