Lockjaw (trismus) is a painful condition that limits your ability to open your mouth all the way. It occurs when the muscles you use to chew spasm, meaning they can’t relax completely. The term ...

An 11-year-old boy’s painful chronic lockjaw may have been triggered by conversion disorder, a mental health condition that causes physical symptoms, according to a case report published on April 7 in ...

GRAND RAPIDS, Mich. (WOOD) TMJ disorders can cause pain and dysfunction in your jaw and face. In some cases, your jaw can get locked closed, but there are solutions. Our Expert, Dr. Kathi Wilson from ...