There are often two types of headache when cervical spondylosis compresses the nerve: 1. Headache occurs when cervical spondylosis compresses the sympathetic nerve, the pathogenesis of which is still unclear, but it can be accompanied by headache, dizziness, and migraine, as well as symptoms of sympathetic excitation such as eye pain, tinnitus, and discomfort in the precordial area. 2. Pain in the back of the neck and in the head and occiput can also occur when high cervical spondylosis compresses the nerve, and it can also be a migraine. headache on one side. The diagnosis should be made by X-ray and MRI, and different treatments should be given according to the type.