Self-test for cervical spondylosis: Only stiffness, stiffness and mild pain in the neck, shoulders and back are relatively mild cervical spondylosis. Pain, radiating pain or numbness in the cervical region attached to the upper extremities, which is caused by the nerves leading to the upper extremities being affected. Dizziness, headache, nausea, vomiting, ringing in the ears, and blurred vision occur. This is a symptom that occurs when the nerves and blood vessels leading to the head are affected. Weakness in the limbs, weakness in the legs, muscle stiffness, difficulty walking, and even paralysis of the lower limbs, loss of control of urination and defecation, and sexual dysfunction. This indicates damage to the internal spinal cord of the cervical spine. Heart panic, chest tightness, stomach distension, diarrhea, little or excessive sweating of the limbs, chills in the extremities, irritability, facial fever, tinnitus, diminished vision, eye distention, irregular heart rate, spasm or dilation of both upper limbs and blood vessels prove that the sympathetic nerve receives compression. You should know more about the danger signals of cervical spondylosis, because these signals are very important for you to always be on the lookout for them. Long-standing dizziness, headache or migraine, heavy head numbness, numbness of fingers, weakness of upper limbs, etc., recurrent neck, back and back pain, soreness and tenderness, unexplained insomnia and dreaminess, memory loss, persistent tinnitus or hearing loss for non-ear reasons, unexplained heart arrhythmia, angina-like symptoms, long-term low blood pressure or “inexplicable” high blood pressure, unexplained respiratory, digestive and endocrine dysfunction, etc. The following group of people need to pay more attention because your work is likely to lead to cervical spondylosis. The sedentary: office white-collar workers, computer workers, accountants, writers and other long-term ambulatory workers; occupational hazards: driving, lawyers, teachers and other occupations, maintaining the same posture for a long time, easy to produce osteophytes; cumulative strain into disease: middle-aged and elderly people, do not pay attention to the maintenance of the cervical spine, long-term down the cumulative strain into disease, resulting in bone aging, muscle strain.