Tendon sheath cysts are cystic swellings that grow in the tendon sheaths around the joints due to trauma, strain injury, etc., and have a jelly-like substance inside. For larger tendon sheath cysts, closed treatment can be given, while smaller and recurrent surgery is more effective. 1. For the first time onset, and tendon sheath cysts are large, easy to puncture patients, it is recommended to take closed treatment, the use of sterile syringe puncture suction capsule contents, and then the capsule injected with relevant drugs, such as trimethoprim and other glucocorticosteroid drugs, and so on. This method is better with less damage, faster recovery and lower recurrence rate. 2. For smaller tendon sheath cysts or those who have had repeated episodes, it is often more difficult to puncture, it is recommended to give surgical treatment, the more commonly used surgical tendon sheath cyst excision, which is a better method than closed treatment. It is recommended to go to the hospital, complete the auxiliary examination, clarify the specific condition, and be treated by a professional physician.