Joint pain may be caused by trauma, autoimmune disease, synovitis and other diseases, and the cause should be further clarified and then be treated accordingly or symptomatically. 1. Trauma: when the joints are damaged by external force, resulting in ligament damage or cartilage damage, the patient will show symptoms of joint pain. In response to the patient’s symptoms, under the premise of making sure that the patient does not have skin damage, the patient can be given cold compresses or oral etoricoxib, diclofenac and other non-steroidal anti-inflammatory drugs to alleviate the symptoms, and if necessary, to be treated with surgical procedures. 2. Autoimmune diseases: autoimmune diseases such as ankylosing spondylitis, rheumatoid arthritis and systemic lupus erythematosus may also cause joint pain. In addition to the application of non-steroidal anti-inflammatory drugs to alleviate the symptoms, immunosuppressant drugs such as cyclophosphamide and sulfasalazine should be given to treat the cause of the disease. 3. Synovitis: synovitis is mostly seen in middle-aged and old people, usually due to strain or trauma leading to increased pressure in the joints and then joint pain and other symptoms, the treatment is based on symptomatic treatment with non-steroidal anti-inflammatory drugs, such as etoricoxib and diclofenac, and if necessary, it is treated with intra-articular puncture injection. The above drugs should be used under the guidance of a doctor, joint pain may also be related to other causes, it is recommended that patients go to the orthopedic department, rheumatology and immunology department of a regular hospital, and follow the doctor’s instructions for treatment.