Postoperative pain after rotator cuff injury surgery needs to be treated according to the cause of the disease, which generally includes joint braking, rest, use of anti-inflammatory and pain relieving or anti-infection drugs and surgery. 1. Post-operative pain: patients may have pain after surgery because the incision and other tissues have not yet recovered. Treatment includes joint braking, resting, taking anti-inflammatory and analgesic drugs such as meloxicam and celecoxib orally, and the pain will be gradually recovered after 1 week. 2. Re-injury: Due to excessive postoperative exercise or trauma, patients may suffer from rotator cuff injury again, and they may have postoperative pain. In this case, it is recommended that the patient should consult the doctor in time, improve the relevant examination and have another operation if necessary. 3. Local infection: due to bacteria, fungi and other pathogens infecting the incision, causing local redness, swelling, heat, pain and other symptoms. Treatment needs to be based on the results of drug sensitivity to choose the appropriate antibacterial drugs for treatment. If the pain is not relieved after rotator cuff injury surgery, or accompanied by other symptoms, you should go to the hospital in time, after clarifying the cause to give targeted treatment. The above drugs should be used under the guidance of a doctor, avoid self-medication.