The numbness of the right shoulder may be caused by physiological factors, or may be caused by trauma, cervical spondylosis, shoulder joint lesions, cerebrovascular disease and other pathological factors. 1. Physiological factors: mostly seen in the long-term right shoulder to maintain the same posture for a long time, local nerves, blood vessels and other tissues are compressed, local ischemia and hypoxia, the patient may feel the right shoulder numbness and crispness and other sensory abnormalities. 2. Trauma: trauma and other violent factors can cause bone and soft tissue injuries, such as rotator cuff injuries, shoulder impingement injuries, when accompanied by nerve damage, the patient can appear right shoulder numbness. 3. Cervical spondylosis: due to cervical spine degeneration and hyperplasia, compressing the spinal cord and nerve roots at the back, patients may experience pain, weakness and numbness in the right shoulder. 4. Shoulder joint lesions: such as frozen shoulder, shoulder joint tumor, shoulder joint tuberculosis, etc., which can lead to inflammation and swelling of the tissues around the shoulder joint, compressing the peripheral nerves and resulting in numbness and tingling sensation; 5. Cerebrovascular diseases: such as cerebral hemorrhage, cerebral infarction and other diseases, can cause one side of the limbs of the loss of power, numbness and other sensory disorders. Right shoulder numbness may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.