Cervical spondylosis is a common clinical disease, which is a series of cervical spine syndrome caused by degenerative lesion of the cervical spine, which compresses our nerves, blood vessels and soft tissues. However, there are many types of cervical spondylosis, and the symptoms of cervical spondylosis vary greatly from one type of cervical spondylosis to another. clinically, the main types of cervical spondylosis are as follows: 1. cervical type: complaints of abnormal sensations such as head, neck and shoulder pain, accompanied by corresponding pressure points. x-ray of the cervical spine shows changes in curvature or intervertebral joint instability. The patient often complains that he or she does not know what position to put his or her head and neck. About half of the patients have limited neck movement or forced position, and individual patients may have transient sensory abnormalities in the upper limbs. The pain increases with activity and can be relieved by rest. The duration of this type of cervical spondylosis is long, lasting for months or even years, and often recurring or light at times. Patients with chronic disease complain of a strange ringing sound when their heads are turned. During an attack, the patient’s head is tilted to the affected side to relieve pain and discomfort. From a large number of clinical observations, it is confirmed that this type is actually the initial stage of cervical spondylosis and the most favorable time for treatment. Therefore, the introduction of this type is of great significance to the prevention and treatment of cervical spondylosis. 2.Nerve root type: The stimulation of degenerative changes of cervical disc or osteophytes compresses the spinal nerve root, causing sensory and motor dysfunction of the upper limb, often manifesting as motor impairment or sensory numbness of one upper limb segment. In the acute stage, the patient’s head and neck can cause pain in the neck, shoulder and arm, or radiating pain in the upper limb, often accompanied by numbness in the fingers, and heavy pain in the evening, affecting rest. A few patients use their hands to protect the affected area to prevent touching the neck from aggravating the symptoms. Weakness of upper limb muscles is a symptom of motor nerve damage, which is manifested by the patient’s difficulty in holding objects, and some patients tend to fall off when holding objects. The skeletal muscles of the limbs are jointly innervated by more than two nerves, and damage to individual nerves may manifest as mild muscle weakness, while involvement of major nerve roots may result in significant motor dysfunction. Patients with cervical spondylosis often have symptoms of cervical torsades de pointes. Stimulation of the cervical nerve roots may reflexively cause increased muscle tone or spasm in the innervated neck and shoulder muscles. In the acute stage, the examination can mostly show that the patient has tension on one or both sides of the back of the neck and localized pressure pain. 3. spinal cord type: cervical disc herniation, ligamentous hypertrophy ossification or other causes of cervical spinal stenosis cervical disc herniation example, spinal cord compression and ischemia, causing spinal cord conduction dysfunction. In some cases, the disease starts in the upper limbs and progresses to the lower limbs; in some cases, the disease starts in the lower limbs and progresses to the upper limbs. The main manifestations are unsteadiness in walking, numbness in the extremities, and difficulty in urination and defecation, etc. X-rays show osteophytes at the posterior edge of the vertebral body and narrowing of the spinal canal. The presence of spinal cord compression is confirmed by imaging. 4, vertebral artery type: Due to the stimulation of degenerative changes of the hook vertebral joint, compression of the vertebral artery, resulting in inadequate blood supply to the vertebral basilar artery, often accompanied by dizziness, black haze and other symptoms, related to the rotation of the neck. In patients over middle age, vertigo, nausea, headache and vision loss are often caused by changes in the head and neck position. In addition, patients may have symptoms of nerve root irritation. The patient’s neck movement is often limited during the onset of the disease, and vertigo is caused by large neck rotation and posterior extension activities. On palpation of the posterior cervical region, some patients may find displacement of the upper cervical vertebrae or other affected vertebrae, and swelling and pressure pain in the corresponding joint capsule. Pathological displacement of the affected vertebrae can be found in frontal and lateral cervical spine and oblique radiographs. Some patients can hear the sound of obstructed vertebral artery blood flow in the upper clavicle of the affected side. 5, sympathetic nerve type: the stimulation of degenerative changes in the cervical intervertebral disc, compression of sympathetic nerve fibers in the neck, causing a series of reflex symptoms, clinically rare, and often mixed with cardiovascular disease, endocrine disease, etc., difficult to distinguish. 6, esophageal type: refers to the esophageal compression type, swallowing with foreign body sensation, clinically very rare, cervical vertebrae in front of the uvula-like hyperplasia compression of the esophagus caused by swallowing difficulties (confirmed by barium examination of the esophagus) 7, mixed type: the above two or more than two exist at the same time, clinically common. Therefore, the early prevention and treatment of cervical spondylosis is particularly important, and we should avoid prolonged sitting and head-down work, and we can do cervical spine health exercises to relieve cervical fatigue when we are idle. In daily life and work, various triggering factors should be avoided, especially attention to sleep and work position, avoid trauma, strain and cold and other adverse stimuli. As long as you pay attention to the protection of the neck and avoid various triggering factors, there are generally few recurrences; however, if you do not pay attention to the way to maintain the neck or continue to increase the load on the neck, there is a possibility of recurrence and further development of the disease or prolongation of the course of the disease.