Once the headache, dizziness, nausea and other symptoms appear, you should be alert to the attack of cervical spondylosis. Cervical spondylosis is a clinical syndrome caused by long-term strain, osteophytes, or prolapsed discs and thickened ligaments, resulting in pressure on the cervical spinal cord, nerve roots or vertebral arteries, leading to a series of functional disorders. So, why does cervical spondylosis occur? In this era of high incidence of cervical spondylosis, we all want to prevent cervical spondylosis, experts pointed out that in order to prevent the occurrence of certain diseases, we must understand the causes of these diseases, prevention of cervical spondylosis is also the same, the following we will talk about why cervical spondylosis, for your reference: 1, bad posture: such as lying in bed watching TV, reading, high pillow, sleeping in a sitting position, etc. can appear cervical spondylosis. 2, head and neck trauma: 50% of medullary cervical spondylosis is related to neck trauma. Some patients have cervical spine osteophytes, cervical disc bulge, soft tissue lesions in the spinal canal, etc., so that the cervical spinal canal is in a narrow critical state, and cervical trauma often triggers the symptoms. 3, strain injury: long-term head and neck in a single position, such as prolonged head-down work, prone to cervical spondylosis. According to statistics, cervical spine patients younger than 30 years old are mostly engaged in low head work type of work. 4, congenital deformity of the cervical spine: in the normal human cervical spine health examination or comparative research film, it is often found that the cervical spine segment can have various abnormalities seen, of which the obvious deformity of the skeleton accounts for about 5%. However, when compared with patients with cervical spondylosis, the number of deformities of the cervical spine in the latter is about double that of normal people. This indicates that the variation of the skeleton has a certain relationship with the occurrence of cervical spondylosis. 5, chronic infection: mainly pharyngitis, followed by dental caries, periodontitis, otitis media, etc.. Inflammation in these areas stimulates the soft tissues of the neck or causes soft tissue lesions in the neck and occipital area through the lymphatic system. It is believed that chronic pharyngeal infection is an important factor in the pathogenesis of cervical spondylosis, which may be related to the exacerbation of chronic strain and inflammation of the soft tissues. 6, wind, cold and wet factors: wind, cold and wet factors of the external environment can reduce the body’s tolerance to pain, which can cause muscle spasm, small blood vessel constriction, slow lymphatic flow, soft tissue blood circulation disorders, followed by aseptic inflammation. Therefore, wind-cold-damp factors are not only causative factors, but can also be used as a cause to cause lesions and produce symptoms. Why does cervical spondylosis occur? Degenerative changes of the cervical spine are the main cause of the development of cervical spondylosis, of which the degeneration of the intervertebral disc is particularly important, being the first factor in the degeneration of the structures of the cervical spine, and thus evolving a series of pathological anatomy and pathophysiological changes of cervical spondylosis.