1.Frequent dizziness and nausea Dizziness is mostly seen in patients with vertebral artery type cervical spondylosis. Some patients have a feeling of nausea, and a few patients have symptoms such as diplopia, eye tremor, tinnitus and deafness. 2.Neck pain or abnormality Pain in the neck. Soreness and swelling? Stiffness? Improve after activity or massage; there are painful points in the neck when you press it by hand; there is a ‘popping’ of ligaments when you massage the neck? Not flexible enough to turn the neck, etc. 3.Shoulder pain Due to improper posture? Long-term low head, sleeping in improper position, etc. cause soreness, discomfort, and chronic pain in the neck and shoulder. 4.Limb numbness or single limb numbness The upper limb or single limb has radioactive pain, cold, numbness, coolness, weakness, inability to stand, walk, or squat. It is aggravated after activity and reduced at rest. 5. Visual impairment. A small number of patients can have symptoms such as vision loss, blurred vision, and even blindness in severe cases. Prevention of cervical spondylosis 1, daily life should maintain the correct posture of the head and neck, do not shrug your head and shoulders to read books, watch TV, operate the computer to look at the front, keep the spine straight. When sleeping, choose a suitable pillow, generally at a height of 10 cm is appropriate. 2, sit as little as possible, do not ride a bike if you can walk, do not ride a bike if you can ride a bike. Take time to exercise every day, such as swimming and climbing. 3, prolonged head-down workers, pay attention to the combination of static and dynamic, every hour or so to stand up and move the limbs, cervical spine, eliminate fatigue, prevent strain injury. 4, pay attention to warmth, do not blow directly against the air conditioning, 5, do not drink alcohol to prevent calcium loss.