There are several common causes of jaw bone pain: a. The patient accidentally fell and injured the jaw during strenuous activities, which can cause local fracture and cause obvious swelling, pain and restricted mouth opening. At this time, patients need to improve the local CT and X-ray examination as soon as possible to clarify the specific situation of the fracture, as soon as possible to perform surgery, internal fixation, postoperative analgesia, edema, anti-infection and other supportive treatment, can reduce the local pain symptoms. Patients with malignant tumor of the oral cavity, if accompanied by invasion of the jaw bone, may also cause local cancer pain. At this time, common analgesic drugs often cannot relieve the pain symptoms. Patients need to improve the relevant examination as soon as possible to clarify the specific location of the primary tumor, and then perform surgery to remove the primary tumor as soon as possible, combined with local radiotherapy and systemic chemotherapy, some patients can achieve certain therapeutic effect.