Finger joint cysts, i.e. articular tendon sheath cysts, are localized hard swellings formed by the synovial fluid in the tendon sheaths, the main component of which is synovial fluid. Articular tendon sheath cysts can sometimes disappear, and then gradually increase in size with the increase in exertion and the increase in the number of activities of the hands. Generally speaking, tendon sheath cysts are asymptomatic when small and do not require special treatment. Large tendon sheath cysts can be painful and compress the surrounding tissues, they must be treated, and the treatment methods include conservative treatment and surgical treatment. 1. Conservative treatment: Finger joint cysts are mostly tendon sheath cysts. First of all, it depends on the size of the cyst. If the cyst is small, local pressure is often used to break the wall of the cyst. Because the whole wall of the cyst will be torn open after pressing and squeezing, and the cyst will disappear after squeezing out the cystic fluid, the cyst will not be easy to recur if the breach is large, but it is more likely to recur if the cyst is punctured by needles. It should be noted that this operation must be carried out by specialized physicians, do not squeeze on your own. 2. Surgery: particularly large tendon sheath cysts affecting joint function can be treated with surgery, which involves cutting open and separating the entire wall of the cyst and then removing it. The vast majority of cysts are benign, and the cystic fluid inside is caused by tendon strain. The causes of finger joint cysts are large, and patients are advised to actively seek medical treatment to avoid delays.