1. Cervical type: 1. Abnormal sensations such as head, neck and shoulder pain, accompanied by corresponding pressure points, which will be aggravated by prolonged fatigue. 2. The cervical spine shows changes in curvature or intervertebral joint instability on x-ray. Nerve root type: 1. Typical radicular symptoms (radiating numbness and pain in the upper extremities), sometimes unbearable pain, affecting sleep, and the scope is consistent with the area innervated by the cervical spinal nerve. 2. 2. Positive head press test or brachial plexus pull test. 3. The imaging findings are consistent with the clinical presentation. 4. No significant effect of painful point closure (this test may not be performed if the diagnosis is clear). Spinal cord type: 1. Clinical weakness of limbs, unstable walking, walking with a feeling of stepping on cotton, inability to hold heavy objects with both hands, inability to do fine movements, sometimes unable to hold chopsticks or write. 2. MRI or CT shows cervical disc herniation compressing the spinal cord and spinal stenosis, and imaging confirms the existence of spinal cord compression. IV. Vertebral artery type: The diagnosis of vertebral artery type cervical spondylosis is a problem that needs to be studied. 1. There was a sudden collapse attack with cervical vertigo. 2. Positive rotational neck test. 3.X-ray shows segmental instability or osteophytes of the pivotal joints. 4. Mostly accompanied by sympathetic symptoms. V. Sympathetic type: Clinical manifestations include dizziness, blurred vision, tinnitus, numbness in the cervical-occipital region, hand numbness, tachycardia, nausea but rarely vomiting and a series of sympathetic symptoms, with instability or degeneration on x-ray and negative vertebral arteriogram.