1, stroke: more than 90% of stroke patients have cervical spondylosis, and many people still do not know the cause after the stroke. 2.Insomnia and neurasthenia: 70% of people with this type of disease are clinically observed to be caused by cervical spondylosis. 3, sudden onset of vertigo: mainly due to compression of the vertebral artery, sudden fainting often brings serious consequences. 4.Severe memory loss: caused by the compression of the vertebral artery by the cervical spine, which can seriously lead to cerebral infarction or even cerebral hemorrhage. 5, neck stiffness can not be turned: cervical spondylosis due to degeneration of the vertebral body and intervertebral discs, ligament calcification will lead to limited neck movement. 6.Phytodysfunction: caused by the bone of the anterior edge of the vertebral body compressing the posterior wall of the esophagus or stimulating the surrounding soft tissue reaction. 7.Upper limb pain and weakness: caused by intervertebral compression of nerve roots, which can affect both sides of the torso at the same time and develop more rapidly. 8.High paraplegia: cervical spine osteophytes and bone spurs compressing the nerve roots and spinal cord in the neck, leading to the onset of paralysis. 9.Deafness: caused by stimulation or compression of sympathetic postganglionic fibers next to the cervical spine, often accompanied by blurred vision, etc.