According to the condition of the left shoulder joint humeral tuberosity cystic degeneration, there are conservative treatment and surgical treatment and so on. 1. Conservative treatment: the left shoulder joint humeral tuberosity capsular degeneration is one of the typical manifestations of the humeral tuberosity when there is destruction of bone in X-ray examination, for the left shoulder joint humeral tuberosity capsular degeneration condition is mild, no obvious pain and does not affect the activities, need to be treated conservatively, with the observation as the main focus, can’t bear weight on the left shoulder for a long time, and regular checkups. 2. Surgical treatment: for the left shoulder joint pain, and affect the normal life and work of the left shoulder joint humeral tuberosity cystic degeneration, can be minimally invasive arthroscopic surgery to remove, can also be open surgery to remove the bone after implantation. Pain relief and anti-inflammatory treatment are needed after surgery. The left shoulder joint humeral tuberosity capsular degeneration should be timely to the regular hospital, the doctor according to the specific condition to give the correct treatment, the drugs need to be applied under the guidance of the doctor.