Cervical spondylosis, also known as cervical spine syndrome, is a disorder based on degenerative pathological changes, mainly due to long-term cervical spine strain, osteophytes, or disc protrusion (prolapse), ligament thickening, resulting in cervical spinal cord, nerve root or vertebral artery compression, a series of clinical syndrome of vascular neurological dysfunction. It manifests as a series of pathological changes in the cervical disc degeneration itself and its secondary pathology, such as cervical nodal instability, loosening, nucleus pulposus protrusion or prolapse, bone spur formation, ligamentous hypertrophy and secondary spinal stenosis, etc., which stimulate or compress the adjacent blood vessels, nerve roots, spinal cord, vertebral artery and cervical sympathetic nerve and other tissues, causing a variety of symptoms and a series of signs and symptoms of the syndrome. So, what are the complications of cervical spondylosis? 1.Swallowing disorder A feeling of obstruction when swallowing, a foreign body feeling in the esophagus, a few people have nausea, vomiting, hoarseness, dry cough, chest tightness and other symptoms, which are caused by direct compression of the back wall of the esophagus by the front edge of the cervical spine and esophageal stenosis, or may be caused by the irritation of the soft tissues around the esophagus due to the rapid formation of bone spurs. 2.Visual impairment manifested as vision loss, eye distension, photophobia, lacrimation, pupil size, and even visual field reduction and sharp vision loss, and blindness may occur in individual patients, which is related to ischemic lesion of the visual center of the occipital lobe of the brain caused by autonomic nerve disorder and insufficient blood supply to the vertebrobasilar artery due to cervical spondylosis. 3.Cervical heart syndrome manifests as pain in the precordial region, chest tightness, arrhythmia (such as mid-pulse, etc.) and ST-segment changes in the electrocardiogram, which is easily misdiagnosed as coronary heart disease, which is caused by the stimulation and compression of the nerve roots in the back of the neck by the cervical spur. 4, hypertension cervical spondylosis can cause an increase or decrease in blood pressure, of which elevated blood pressure is the most common, called “cervical hypertension”, because cervical spondylosis and hypertension are both common diseases of the middle-aged and elderly, so the two often coexist. 5.Pain in the chest The pain in the thoracic major muscle and breast is slow in onset, and there is pressure pain in the thoracic major muscle during examination, which is related to the compression of the nerve roots of cervical 6 and 7 by the cervical spine. 6, lower limb paralysis Early manifestation of lower limb numbness, pain, limp, some patients have a feeling like stepping on cotton when walking, individual patients may also be accompanied by defecation, urinary disorders, such as frequent urination, urinary urgency, urinary incontinence or urinary and fecal incontinence, etc. This is because the lateral bundle of the vertebral body is stimulated or compressed by the cervical spur, resulting in lower limb motor and sensory impairment. 7, sudden collapse often in standing or walking due to sudden head twisting body loss of support and sudden collapse, after falling to the ground can be quickly awake, not accompanied by impaired consciousness, and no sequelae, such patients can be accompanied by dizziness, nausea, vomiting, sweating and other symptoms, this is a plant nervous disorder in the cervical spine proliferative changes in the compression of the vertebral artery caused by basilar artery blood supply disorders, resulting in temporary cerebral blood supply deficiency. Therefore, here is a warning to everyone who has similar symptoms to the above, please do not forget to check your cervical spine.