If pain is still present half a month after synovitis surgery, it is advisable for the patient to communicate with the surgeon and ask about the cause of the pain. This is because the synovial membrane itself is rich in nerve endings. After arthroscopic surgery to remove the synovial membrane, the patient may not have fully recovered in about half a month, tissue repair is not yet complete, and there is still a certain amount of fluid in the joint, which may be accompanied by swelling and pain at this time. For such patients, warm compresses with hot and moist towels, local baking lamp, microwave physiotherapy, massage, and elevation of the affected limb can help eliminate pain, and if necessary, continue to take oral non-steroidal anti-inflammatory drugs and synovitis pellets to relieve symptoms.