Nerve compression in the shoulder and neck may be caused by cervical spondylosis, shoulder joint disease, cerebrovascular disease and other factors. 1. Cervical spondylosis: It is common for cervical intervertebral disc herniation to compress the nerve root, causing one side of the upper limb or both sides of the upper limb of the innervated range of the nerve root to have radiating pain, numbness and other clinical manifestations. 2. Shoulder joint disease: commonly caused by shoulder joint tumor, trauma, tuberculosis and other diseases that lead to shoulder nerve compression, resulting in numbness, pain and a series of symptoms in the upper limbs. 3. Cerebrovascular diseases: commonly caused by cerebral hemorrhage, brain tumor causing nerve conduction disorders, which may result in pain, numbness and even paralysis of one side of the limbs. Shoulder and neck compression of the nerve may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.