According to a survey, in the elderly population over 65 years of age, about 80% of patients have at least one chronic disease that is more likely to trigger pain than other age groups. So the incidence of all kinds of pain has increased. Pain in middle-aged and old people whether to personal quality of life, family harmony, or society as a whole has a very heavy impact. Pain is good or bad Pain has been listed by modern medicine as the fifth most important vital sign after whistle, pulse, blood pressure and body temperature. Pain, like many other things, is “good” and “bad”. “Good” pain tells people of approaching danger and awakens the body’s defense response. Without pain, a person cannot survive. “Bad” pain, on the other hand, is unhelpful and serves no purpose other than to make a person feel tense, agonized, and even worse than death. Some chronic pain is also a disease in itself (e.g. trigeminal neuralgia, postherpetic neuralgia, etc.). Long-term local pain will form a complex local pain syndrome or central pain, so that ordinary pain becomes very intense, leading to dysfunction of the body’s systems, reduced immunity and induced a variety of complications, and even disability or endanger the patient’s life. Long-term pain not only seriously affects the patient’s physical, psychological and social functions, but also affects their families and even society. What kind of pain does the pain department treat? Professor Fan Bifa, deputy director of the National Pain Diagnosis and Treatment Research Center and director of the pain department of China-Japan Friendship Hospital of the Ministry of Health, summarized three types of pain that can be treated in the pain department. 1, neck, shoulder, waist, legs and other parts of the wear and tear in the process of movement and pain. The early stage of wear and tear does not have obvious bone and muscle changes, and only manifests as pain. These pains may be treated simply by giving some painkillers if they are treated in a department other than the pain department, whereas in the pain department a comprehensive treatment other than medication may be given. In fact, by perfecting the pain, the circulation to the painful bone and joint area will be better, and the joint itself will benefit. There are some other pains in the crest and limbs, such as herniated discs and cervical spondylosis, etc., where patients are neither willing to undergo surgery or have no indications for surgery, and the effect of simple medication is not good, so these patients should also go to the pain department for treatment. 2, a variety of intractable neuralgia. Such as trigeminal neuralgia, postherpetic neuralgia, sciatica, intercostal neuralgia, occipital neuralgia, etc., these pains are treated in pain department. 3.Cancer pain. Cancer itself is a chronic process of consuming the human body, but once serious cancer pain occurs, the damage of this vicious pain stimulation to the human body is more serious than the cancer itself, which can quickly destroy the human body. Many foreign medical researches show that perfect treatment of cancer pain can not only greatly improve the quality of life of patients, but even prolong their lives.