The treatment of tendon sheath cysts depends on the condition. If the condition is mild, it will gradually shrink or become softer after rest, or even disappear on its own, and is usually treated conservatively. If the condition is serious, surgery is needed. Most of the tendon sheath cyst patients with the increase of activity, there will be the phenomenon of cyst enlargement, accompanied by soreness or local swelling phenomenon, but after sufficient rest, can reduce the volume of the cyst, the cyst will gradually shrink or soften, and in a few cases will disappear on their own, so the general conservative treatment. Clinically, if the tendon sheath cyst is large and does not subside, has a high recurrence rate, and affects the appearance or function, surgical resection is required. If diagnosed with tendon sheath cysts, it is recommended that patients do a good job of their own conditioning measures, especially pay attention to avoid strenuous sports, protect their joints, and go to the hospital for diagnosis and treatment in a timely manner if there is any abnormality.