1.Cervical type cervical spondylosis: the most common clinically, the most early stage of cervical spondylosis, imbalance of local bone and soft tissue tension in the cervical spine, local spasm, stiffness, soreness and pain unsuitable, unfavorable activities. x-ray film suggests that the physiological curvature of the neck has become smaller, straightened or anti-tensor. 2, neurogenic cervical spondylosis: clinically common, nerve root irritation and compression, cervical symptoms plus limb, finger soreness, numbness, swelling and pain, some hand muscle atrophy. x-ray vertebral joint instability, intervertebral foramen narrowing and hook vertebral joint hyperplasia. mr intervertebral disc degeneration, posterior protrusion of the nucleus pulposus, lateral saphenous nerve compression, and nerve root injury in severe cases on electromyography. 3, spinal cord type cervical spondylosis: rare, irritation and compression of spinal cord tissue. CT suggests spinal stenosis, MR medullary compression. (Note: more surgery is required). 4.Vertebral artery type cervical spondylosis: less common. Vertebral artery compression folding, stenosis and bending, vertebrobasilar artery insufficiency of blood supply. Headache, vertigo, deafness, tinnitus, hearing loss, vision loss, sudden collapse with neck twisting but clear consciousness. x-ray hooked vertebral hyperplasia and intervertebral foramen narrowing and vertebral malformation, MRA/DSA suggest vascular vascular variation. 5, esophageal compression type cervical spondylosis: rare. Anterior compression of the vertebral body on the esophagus. X-ray/CT/MRI shows bone spurs on the anterior edge of the vertebral body, and barium meal shows esophageal stenosis. 6, mixed type: combined with more than 2 types.