Straightening of cervical curvature is a precursor of cervical spondylosis due to long-term sitting posture, unreasonable sleep posture and dehydration and degeneration of the nucleus pulposus of the cervical spine keyboard, resulting in the gradual disappearance of cervical convexity and even the manifestation of inverse curvature. The cause of cervical spine physiological curvature, the first consideration of acute muscle sprain of the neck is due to the spasm and pulling of the neck muscles resulting in bone deformation; then is the neck and shoulder myofibrillar tissue inflammation, which is caused by frequent unreasonable sitting posture and cold stimulation, resulting in myofibrillar tissue inflammation of the neck, making the neck pain and spasm appear; in the acute stage of the root type cervical spondylosis, is also In the acute stage of radicular cervical spondylosis, it may also lead to the straightening of the physiological curvature of the cervical spine, because the affected small joints will show acute inflammation, so it will lead to the swelling of the periosteum of the joints and the joint capsule, so there will be the straightening of the curvature of the cervical spine; and it is accompanied by the restriction of the movement of the neck and shoulder. Tumors, septic infections, tuberculosis, etc., may also cause straightening of the physiological curvature of the cervical spine, and a more serious disease is ankylosing spondylitis, especially in advanced stages, which leads to straightening and stiffening of the curvature of the cervical spine. For patients with straightened cervical physiological curvature, it is important to choose a regular hospital to receive systematic treatment and health guidance to consider controlling the further development of the curvature and avoiding the emergence of curvature retroflexion. And pay attention to correct their standing and sitting posture, and practice doing some neck and shoulder exercises.