There are many reasons for the phenomenon of a protrusion in the posterior cervical spine of the human body. Since the cervical spine needs to carry the weight of the head, and also needs to carry out activities such as forward flexion, backward extension and rotation frequently, or a posture is maintained for too long, catching a cold and other factors, all of which can easily lead to strain on the muscle tissue in the posterior cervical spine area, the manifestation of a protrusion will occur, and the patient will have local pain and swelling, affecting activities and so on. Patients who develop a rich bag in the cervical spine area or have fasciitis, bursitis, or supraspinous ligamentitis in the neck can produce a protrusion in the posterior cervical spine. In terms of treatment, the patient can be instructed to do the correct rehabilitation exercises of the neck frequently in normal times, which can reduce the phenomenon of protrusion of the posterior cervical spine, and try to avoid unfavorable factors such as catching cold and bearing weight.