Many people understand that the symptomatic parts of cervical spondylosis are only the neck, but this understanding is wrong. Which parts of the body are the main symptoms? I. Eye symptoms Eye pain, eye muscle spasm and other symptoms appear when the neck is overactive, which can lead to blindness and conjunctival congestion in serious cases. Neck symptoms: pain, stiffness, restricted movement, neck muscle spasm, difficulty in moving, feeling of binding, feeling of swelling of the neck, etc. The head is often tilted to one side, and it is difficult to lift, lower and rotate the head. Headache symptoms: radiating pain, scurrying pain, numbness, swelling pain, localized pain, forehead pain, pain on both sides, pinnacle pain, heavy pain and even vomiting. Upper limb symptoms Numbness and pain in the shoulder, arm and back, movement disorders, electric shock, arm weakness, unstable holding and other symptoms, upper limb muscle atrophy, limited peri-shoulder activities. V. Lower limb symptoms The lower limbs may have radiating pain, cold, numbness, coolness, or hot scurrying pain, weakness, inability to stand, walk, or squat, aggravated after activity, alleviated after rest, or aggravated just after rest, rarely improved after activity, and aggravated after re-activity. It is related to weather changes, aggravated by cold, alleviated by heat, or not obvious, etc. In severe cases, myasthenia gravis, claudication, and functional decline.