Morsicatio buccarum, or chronic cheek biting, is where a person bites down on the inside of their cheek repetitively or compulsively. The name is Latin, derived from “morusus,” which means to bite, ...

Infections, injuries, jaw problems, and cancer can all cause mouth pain. The location and type of pain, plus any other symptoms that occur with it, can help with identifying the cause. The pain may ...