Cervical spondylosis is a common degenerative disease with five main subtypes: 1. Cervical cervical spondylosis. It is mainly characterized by neck pain, restricted movement and muscle stiffness, and is also called localized cervical spondylosis because the symptoms and signs are confined to the neck. 2.Neurogenic cervical spondylosis. Neurogenic cervical spondylosis is a more common type of cervical spondylosis, which mainly manifests as sensory and motor disorders and reflex changes consistent with the distribution area of spinal nerve roots, and mostly presents symptoms such as pain and numbness in the neck and both upper limbs. 3.Vertebral artery type cervical spondylosis. The 2nd segment of the vertebral artery passes through the 6th cervical transverse foramen in the paravertebral body alignment When the hook vertebral joint is enlarged, it can cause extrusion and stimulation to the vertebral artery, causing insufficient blood supply to the brain and producing symptoms such as dizziness and headache. 4.Spinal cord cervical spondylosis. Spinal cord cervical spondylosis is one of the more serious types. Its manifestations are mostly numbness in the sensory and motor planes, decreased muscle strength, increased muscle tone, etc. Spinal cord type cervical spondylosis all have spinal canal stenosis, coupled with anterior and posterior compression factors, and the onset of protruding discs, bone redundancy, posterior longitudinal ligament and yellow ligament causes secondary stenosis of the spinal canal, stimulating compression of the spinal cord to produce symptoms. 5.Mixed type cervical spondylosis. Generally cervical spondylosis is cervical type in the early stage and later develops into neurogenic type, and neurogenic type and spinal cord type often exist together, and those who combine two or more symptoms at the same time are called mixed cervical spondylosis.