The causes of right hand shoulder pain may be related to frozen shoulder, subacromial bursitis and cervical spondylosis. 1. Frozen shoulder: When suffering from frozen shoulder, adhesion between the humeral head and the joint capsule can occur, leading to symptoms of shoulder pain. 2. Subacromial bursitis: If the acromion itself is not well developed, and the bursa is often stimulated and impacted during the process of lifting the arm, it can lead to aseptic inflammation of the subacromial bursa, which can lead to shoulder pain. 3. Cervical spondylosis: If the cervical disc is herniated, the nerve root can be compressed, which affects the function of its innervated area and may cause right shoulder pain. It is recommended that people with right hand shoulder pain go to a regular hospital in time, to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor, so as to avoid delaying the condition.