Degeneration of the supraspinatus tendon of the shoulder joint will usually cause pain and limitation of shoulder joint movement, and its causes are generally considered from the following aspects, such as: strain and degeneration of the supraspinatus tendon caused by long-term activity of the shoulder joint, frozen shoulder, trauma to the shoulder, and so on. 1. Muscle strain caused by long-term shoulder joint activities: it leads to pathological changes in the supraspinatus tendon of the shoulder joint, such as degeneration, reduction of local tension and elasticity of the tendon, i.e. degeneration. 2. Frozen shoulder: Frozen shoulder often manifests itself in the degeneration of supraspinatus tendon, which is mostly due to the adhesion of muscle fibers, resulting in the reduction of local tension and elasticity of tendon, and its function is reduced. 3. Shoulder trauma: Some shoulder trauma may lead to tendon membrane strain or compression, thus leading to degeneration of the supraspinatus tendon. In terms of treatment, generally under the guidance of doctors, different treatment options are chosen according to the cause of the disease, generally the Chinese medicine treatment options include small needle treatment, and the western medicine treatment includes oral anti-inflammatory and pain relieving drugs and so on. Shoulder supraspinatus tendon degeneration may also be caused by other reasons, if you have any discomfort, please consult a doctor in time to avoid delaying your condition.