Diseases to be alerted to for right shoulder pain include frozen shoulder, rotator cuff injury, cervical spondylosis and so on. 1. Frozen shoulder: due to long time chronic strain, or the right shoulder is in bad posture for a long time, which leads to local aseptic inflammation and fibrosis, thus triggering frozen shoulder, pain around the right shoulder joint, limited activities and other symptoms. 2. Rotator cuff injury: rotator cuff is the general name of a series of tendon tissues covering the front, top and back of the shoulder joint. When the tendon tissues are damaged due to acute injury or chronic overuse of the right shoulder, it leads to rotator cuff injury of the right shoulder, which results in the symptoms of pain in the right shoulder and limitation of active activities of the shoulder joint. 3. Cervical spondylosis: Neurogenic cervical spondylosis is a nerve root lesion caused by cervical intervertebral disc degeneration. When the cervical nerve root is irritated and compressed, it may cause neck pain and radiating pain in the right shoulder. Right shoulder pain may also have other diseases, it is recommended to go to the hospital in time, improve the examination to clarify the disease, under the guidance of the doctor to give targeted treatment or treatment.