Mandibular arthritis does not usually cause discomfort in the surrounding muscles and neck. Mandibular arthritis refers to temporomandibular joint disorder syndrome. Patients mainly present with pain in the joints and corresponding muscle groups, popping and murmur when the joints move, abnormal jaw movement and other symptoms. 1. Pain in joints and corresponding muscle groups: patients mainly experience pain when they open their mouths or chew, usually no spontaneous pain, spontaneous pain may occur in acute synovitis, some patients have painful trigger points in muscles and myofascia, patients may show soreness, dull pain in cheeks, occipital area and other sensory abnormalities, and sometimes fatigue of masticatory muscle groups. 2. Popping and murmur during joint movement: Normal temporomandibular joints show coordination, smoothness, no obvious popping and murmur during movement. When there is displacement, deformation, breakage of joint discs or organic change of joint surface, there will be popping or murmur and other abnormal joint sounds. 3. Abnormal mandibular movement: patients mainly show abnormal opening type, abnormal opening degree and pause in opening movement. It is recommended that patients go to regular hospitals, under the diagnosis of the doctor, according to the patient’s condition, targeted treatment, avoid excessive activities in life, avoid chewing on one side, and consciously relax the jaw in life.