Numbness and pain in the cervical spine is caused by cervical spondylosis compression of the nerve, after the age of cervical spine will occur osteophytes, intervertebral discs will occur degenerative changes, as well as ligamentum flavum will be hypertrophied, the hook vertebral joints will be formed bone spurs, and so on, these proliferation of organisms will stimulate and compression of nerves, if compression of the nerves will appear numbness. If the nerve is compressed for a long time, it will lead to inflammation and edema of the nerve root, and the stimulation of inflammatory substances will cause pain. Therefore, the numbness and pain of cervical spine are caused by the compression of the nerve root of the brachial plexus by cervical spondylosis, which is the clinical manifestation of neurogenic cervical spondylosis. When checking, you can do a positive brachial plexus nerve pulling test, or you can take five X-rays of the cervical spine, or a cervical MRI, etc. to make a clear diagnosis.