Cheek bone pain when eating is mainly due to temporomandibular joint disorder syndrome. The human temporomandibular joint is mainly composed of joint head, joint disc, joint fossa, joint capsule and joint ligament, of which the most important is the joint head, joint disc and joint fossa, and the uncoordinated movement between them will cause temporomandibular joint disorder. The main manifestation of this disease is pain when opening or chewing, movement with popping, and changes in the degree of opening. This disease is not a short-term disease and is often caused by chronic irritation due to many factors, so it is important to look for related causes to see if there is any clinical disease causing TMJ disorder.