Where does cervical spondylosis come from? There are many causes of cervical spondylosis, which are generally summarized as both internal and external causes. Some patients have external causes, while others have internal causes. Internal causes: The cervical spine joint is very active in people’s daily life and has the function of flexion and extension and rotation, so due to the accumulation of a lot of movement and strain, chronic damage is formed over time and degenerative lesions are easily produced. In cervical spondylosis, degenerative lesions of the cervical disc are the common internal cause and the basis of the pathogenesis. External causes: From clinical observation, it is found that most patients have certain external pathogenic factors. The main external factors are as follows: 1. Acute cervical spine trauma, 5-15% of cervical spondylosis patients have a history of acute trauma in clinical practice. Sometimes, although there are no obvious neurological symptoms at the time of trauma, neurological compression symptoms appear after a period of time. Even cervical spine trauma in adolescence can become an important cause of cervical spondylosis after middle age. 2, chronic cervical spine injury: more common than acute trauma. Most often occur in long-term embroidery, sewing, accounting and other voluntarily workers and the middle-aged and elderly. Due to long-term low head position, cervical spine and related tissues can be degenerated due to abnormal stress. 3, neck and pharyngeal infection: cervical spondylosis patients are easy to combine with chronic pharyngitis, and whenever the acute attack of pharyngitis induces symptoms of cervical spondylosis or aggravates the existing symptoms. 4, wind, cold and dampness invasion: wind, cold and dampness stimulation can lead to muscle tension and increase the pressure inside the cervical joints, prompting the aging of the joints. The above causes lead to degeneration of the cervical vertebrae, intervertebral discs, ligaments and joints from different angles, and once the nerves, blood vessels, spinal cord or sympathetic nerves in the neck are stimulated, cervical spondylosis can be caused. Cervical spondylosis is complex, and the clinical manifestations vary greatly depending on the tissue stimulated and compressed after cervical degeneration. 1. Cervical cervical spondylosis: It is caused by cervical muscle strain and relaxation of joint capsule and ligaments. It manifests as pain or soreness in the head, neck, shoulder and back, inflexible neck activities, easy fatigue, and straightening of the physiological curve of the cervical spine as seen in X-ray. 2. Nerve root type cervical spondylosis: caused by the compression and stimulation of cervical nerve root by cervical spur. It manifests as numbness, radiating pain, muscle weakness and muscle atrophy of one or both upper limbs. 3. Vertebral artery type cervical spondylosis: The transverse process of the cervical spine has a transverse foramen, through which the vertebral artery passes. Cervical spine osteophytes can stimulate and compress the vertebral artery, causing insufficient blood supply to the head. The symptoms are dizziness, headache, nausea, vomiting, tinnitus, etc. The symptoms often appear or worsen when the cervical spine is in a certain posture. So, how can you tell if you have cervical spondylosis? First, radiating pain like electric shock in a certain part of the limb is a typical manifestation of cervical spondylosis of the nerve root type. If it is accompanied by symptoms of dizziness, nausea and rotation of vision, it is often accompanied by vertebral artery type cervical spondylosis. Second, numbness of the fingers, especially both fingers are numb, must think of whether it is cervical spondylosis, and both fingers numbness, may be the important structure of the spinal cord is compressed. Third, do a ten-second finger flexion and extension experiment, hand clenched fist, then fully extended, calculate ten seconds to do more than twenty times to be considered normal. Fourth, walk along a straight line, two feet in a line, people with spinal cervical spondylosis can not walk in a straight line.