Jaw joint pain is one of the clinical manifestations of temporomandibular joint dysfunction syndrome, which is a common disorder of the oral and maxillofacial region. It usually occurs in young adults, with the highest prevalence in the 20s and 30s, but most people do not know it is an oral disease at the beginning of the disease. The main clinical manifestations of temporomandibular joint disorder syndrome are localized soreness, pain, popping and movement disorders, with painful areas mostly in or around the joint area, and some patients may have different degrees of symptoms such as restriction when opening the mouth or temporal pain, dizziness and tinnitus. So, what are the causes of jaw joint pain? The following are the causes of jaw joint pain: 1. Trauma factors Many patients have a history of local trauma. For example, acute trauma such as impact, sudden biting of hard objects, excessive opening of the mouth (such as yawning); and frequent chewing of hard food, grinding of teeth at night and unilateral chewing habits. These factors may cause joint contusions or strain, masticatory muscle group dysfunction also has a certain impact on the occurrence of this disease. 2, occlusal factors Many patients have obvious occlusal relationship disorders. For example, the tip of the teeth is too high, excessive wear of the teeth, too many missing molar teeth, bad dentures, too low intermaxillary distance, etc. The disturbance of the occlusal relationship can disrupt the balance of function between the internal structures of the joint and contribute to the occurrence of the disease. 3, systemic and other factors Neuropsychiatric factors and the disease can have a certain relationship. For example, some patients have emotional impatience, nervousness, easily agitated and other conditions. In addition, some patients have a history of rheumatism, and the onset of some is related to cold. If the above-mentioned symptoms appear, you should immediately go to the temporomandibular joint disease department of the stomatological hospital and wait for the doctor to diagnose and treat the disease according to different conditions.