The clinical diagnosis of synovitis can be confirmed based on physical examination, puncture and aspiration, blood count, sedimentation, C-reactive protein, X-ray, CT, MRI, arthroscopy, etc., as follows: a. Physical examination: active examination by the physician is required to check whether the range of motion of the affected joint is restricted, whether there is pressure pain in the joint, the degree and nature of swelling, and whether there is an increase in local skin temperature This will help the doctor to determine the type and extent of the disease. Second, joint cavity aspiration: joint cavity aspiration can be performed, and then laboratory tests can be performed. Routine blood count, sedimentation, C-reactive protein: Routine blood count, sedimentation, C-reactive protein should be checked. X-ray, CT, etc.: Local plain X-ray, CT, and MRI are required. Arthroscopy: Arthroscopy is required if necessary to confirm the diagnosis of synovitis and to determine the appropriate treatment plan. In the early stages of synovitis, the patient should rest, minimize local stimulation, avoid excessive strain, and actively apply topical ointments to activate blood circulation and remove blood stasis.