The cost of having a tendon sheath cyst removed ranges from a few hundred to a few thousand dollars, depending on the type of surgery, anesthesia, and the level of the hospital. If the cyst is small, it usually does not require hospitalization, and can be removed in an outpatient surgery under local anesthesia, with the surgery costing about a few hundred dollars. If the cyst is large, or next to the nerve, local anesthesia is not effective, may take the brachial plexus nerve anesthesia, need to be hospitalized, the total cost of about 3,000 to 4,000 yuan. In addition, the specific cost is also related to the level of the hospital, the local consumption level, if the hospital level is high, or the consumption level is high, the cost will be increased accordingly. If you find a tendon sheath cyst, you should seek medical treatment in time. For specific treatment plan and cost, you can consult your local hospital.