There are three main ways to confirm the diagnosis of cervical spondylosis: the first is to take a film, also called a DR examination, to see if the physiological curvature of the cervical spine is straightened or reverted, and to see if there is any narrowing of the intervertebral foramen and any possible nerve compression, and to see if there is any bone hyperplasia or fracture. The second is the CT of the cervical spine to see if there is any protrusion, bulging or prolapse of the intervertebral disc, and to see if there is any narrowing of the spinal canal, and if there is any calcification and hyperplasia of the posterior longitudinal ligament and ligamentum flavum, and if the spinal cord is under pressure. The third type is the magnetic resonance examination of the cervical spine, which can see more clearly whether there are problems with the vertebrae, spinal cord, intervertebral discs and the surrounding soft tissues.