1.Difficulty in swallowing Some people start to feel itching and foreign body sensation in the throat, and then feel difficulty in swallowing, with intermittent episodes, sometimes light and sometimes heavy. Patients are sometimes suspected to have esophageal cancer, but gastroscopy is normal. Later, CT scan may show that it is cervical spondylosis. 2, hypertension Hypertensive cervical spondylosis can cause an increase or decrease in blood pressure, but the former is more common, called cervical hypertension, which is related to the stimulation of sympathetic nerves by bone. Patients are often accompanied by neck pain, tightness, upper limb numbness and other typical manifestations. 3, breast pain It is caused by the compression of the nerve roots of the 6th and 7th cervical vertebrae by the hyperplastic bone. It starts with pain in one breast or the pectoralis major muscle, intermittent vague pain or paroxysmal stabbing pain, which is most obvious when turning the head to one side, and sometimes the pain is unbearable. This pain is sometimes misdiagnosed as angina pectoris or pleurisy. 4. Lower extremity paralysis or defecation disorder It is caused by stimulation of the lateral bundle of the spinal cord. Patients have numbness, painful weakness and limpness in the upper extremities, and most of the symptoms in the neck are mild and easily masked. Some patients may suffer from frequent urination, urinary urgency, incontinence or urinary and fecal incontinence. 5. Visual impairment Cervical spondylosis may also manifest as vision loss, intermittent blurred vision, swelling and pain in one or both eyes, photophobia, tearing and narrowing of visual field. This visual impairment is related to the plant nerve dysfunction caused by cervical spondylosis. 6, sudden fall It is caused by the compression of the vertebral artery by the hyperplastic bone and is easily misdiagnosed as cerebral arteriosclerosis or cerebellar disorders. The body often loses support and falls suddenly when it suddenly turns its head during walking, and then comes to its senses and stands up after falling because of the change in the position of the neck.