For a long time, because there is no professional pain disease treatment department, many patients suffering from pain disease aimlessly seek medical treatment, often after many departments treatment still can not get effective treatment or even relief, such patients even lost confidence in medical treatment and hospitals. The establishment of the pain clinic has put an end to the situation of “small pains are treated by many departments, but big pains are not treated by any department”, which is a gospel for patients with pain diseases. The mechanism of the occurrence of pain In order to treat pain well, we must first understand how pain occurs. The pain can be of different degrees. The pain can be divided into acute pain and chronic pain from the course of the disease, headache, neck and shoulder pain, chest and abdominal pain, lumbar and leg pain, etc. From the source of pain, it can be divided into soft tissue pain, joint pain, neuralgia, etc. Most of the pain from the above causes can be relieved or alleviated in the pain department. Since the causes of pain and the pain itself are very complex, it must take a certain amount of time for a professional physician to be able to distinguish the categories and make a relatively clear diagnosis, and then develop treatment measures. The harmful effects of pain on the human body are incalculable, leading to dysfunction of the cardiovascular system, digestive system and endocrine system, and low immunity, which in turn induces various complications, often accompanied by disorders of the plant nerve function. It can also cause varying degrees of mental fear, panic, depression, anxiety, sadness and other adverse emotions, and even cause painful disability or affect the life of the patient, which brings great pain and negative effects to the patient and other members of his family. It is evident that pain has become one of the major killers of human health and one of the most common and direct factors causing the loss of human work capacity. Pain is an important signal of human illness. Long-term pain tolerance can conceal the development of the disease, delay the best time for treatment, and self-promote the deterioration of the disease. Pain itself is a disease, small untreated is big, tolerating pain will lead to deep damage to the tissues of the body. Therefore, it is important to seek timely medical attention for pain. What kind of diseases are suitable for pain clinic? The scope of pain clinic treatment includes: all kinds of acute and chronic pain, such as trigeminal neuralgia, migraine, frozen shoulder, cervical spondylosis, lumbar spondylosis, geriatric osteoarthrosis, herpes zoster and post-herpetic nerve pain, advanced cancer pain, long-term post-operative pain, phantom limb pain after amputation, etc. Any chronic, long-term pain that bothers people’s life and health can be treated at the pain clinic. The common intractable pains are as follows: ① Trigeminal neuralgia, also known as “painful spasm”, is a recurrent transient and severe pain involving one or more distribution areas of the trigeminal nerve confined to the face. Although this disease is easy to diagnose, many patients cannot be cured for tens of years. ②Post-herpetic neuralgia, which is persistent and severe pain even after the lesions (scars) of herpes zoster have been completely healed. (③Post-herpetic neuralgia, which refers to the frequent occurrence of low back pain even after the primary disease has been removed due to spinal surgery for various reasons. ④Phantom limb pain, the subjective feeling that the amputated limb still exists, and the illusion of severe pain. For example, the patient’s thigh has been amputated on one side, but the patient feels that it still exists, but with uncomfortable or painful toes. And so on.