Pain above the right shoulder may have the following causes: First, cervical spondylosis. Patients with cervical spondylosis can experience pain and discomfort in the shoulder, which should be diagnosed and treated by X-ray and MRI of the cervical spine. Second, acromioclavicular arthritis. When chronic aseptic inflammation occurs in the joint between the acromion and the clavicle, pain above the shoulder can occur, and the pain is more obvious when the shoulder joint is moving, and there is a fixed pressure point at the acromioclavicular joint, then X-ray examination of the shoulder joint and clavicle should be performed for diagnosis and treatment. Third, nerve entrapment. If the nerve in the shoulder, such as the suprascapular nerve, is entrapped, there will be pain in the nerve distribution area above the shoulder, and the corresponding nerve examination and physical examination should be performed for diagnosis. Fourth, thoracic outlet syndrome. Patients with thoracic outlet syndrome can often experience nerve compression, resulting in shoulder pain and discomfort, so a neurological examination should be performed to make a diagnosis.