How to cure mouth ulcers naturally Mouth ulcers can be incredibly frustrating—they make eating, talking, and even smiling painful. These sores pop up due to stress, minor injuries, or certain foods.

Medically reviewed by Edmund Khoo, DDS Gum cancer, also called gingiva cancer, occurs when cells in the gum grow out of control, forming tumors or lesions. A common form of gum cancer is squamous cell ...