Smoking has adverse effects on cervical spondylosis for the following reasons: First, smoking can lead to damage to the vascular endothelium, and platelets tend to aggregate at the injury after the vascular endothelium is damaged, blocking the blood vessels causing stenosis and insufficient blood flow in the blood vessels. If it occurs in the vertebral artery, it can cause insufficient blood flow in the vertebral artery leading to cerebral insufficiency, aggravating dizziness, memory loss, hearing loss, vision loss and other symptoms. If it occurs in the spinal cord and the blood vessels around the nerve roots, it can lead to ischemia and hypoxia in the spinal cord and nerve roots causing pain and weakness in the extremities. Second, smoking can also lead to vascular spasm and constriction, which can also cause insufficient blood flow in the above blood vessels and eventually lead to aggravation of cervical spondylosis, so patients with cervical spondylosis should prohibit smoking and avoid second-hand smoke.