MRI is usually required for cervical spondylosis. cervical spondylosis is generally divided into four types, as follows: 1. neurogenic cervical spondylosis: MRI is rarely required, but if there is severe compression, MRI is also required to confirm the protrusion of the intervertebral disc. 2. vertebral artery cervical spondylosis: insufficient vascular blood supply, MRI of the cervical spine vessels is required to confirm the stenosis of the vertebral artery. 3. spinal cord cervical spondylosis. Usually, cervical disc herniation and cervical spinal stenosis cause continuous compression of the cervical spinal cord and produce corresponding clinical symptoms, which also require MRI to further confirm the degree of compression and the degeneration of the nerve.4. Sympathetic cervical spondylosis: symptoms are often atypical and require MRI to further provide diagnostic support. Therefore, MRI is required to support the diagnosis of cervical spine disease.