We all know that there are internal medicine, surgery, ear, nose and throat departments in hospitals, but how can there be such a department as pain medicine? Is it a small department under the Department of Anesthesia? The Ministry of Health has officially issued a notice in 2007, decided to add the first level of diagnosis and treatment in the “medical institution diagnosis and treatment subject list” “pain department”, code 27, the country’s second-class hospitals can carry out pain department diagnosis and treatment subjects, while the third-class hospitals in principle must have pain department diagnosis and treatment subjects. In the future, it is believed that more and more pain specialists will be able to relieve pain for the general public. Some data show that 30% of adults have experienced or are suffering from chronic pain, and 90% of patients are not getting the treatment they deserve, and do not know which department to go to for treatment. So which pains should be seen by a pain specialist? In summary, the following are the main aspects: 1, no obvious cause of pain, such as chronic general pain, headache, chest and back pain, abdominal pain, spinal pain, etc., although after multiple hospitals, multiple departments, long time repeated careful examination, but also did not find the cause of pain and do not know which department they should go to, then should go to see the pain department. After careful examination by the pain doctor, including diagnostic treatment, most of the pain can be found out the pain site, and the fundamental treatment can be taken, often with satisfactory results. For example, herpes zoster was originally a dermatological disease, and the dermatology department had rich experience and good results in the early stages of herpes. Most patients with herpes zoster will have their pain disappear naturally as their herpes improves, but there are a significant number of patients whose pain not only does not improve after the disappearance of herpes zoster, but becomes more painful, medically known as “postherpetic neuralgia”. This is a very stubborn painful disease, there is no special treatment in other departments, if you can go to the pain department for early treatment, you can often achieve satisfactory results. Such as the residual limb pain or phantom limb pain after amputation, chronic intractable postoperative pain syndrome after various surgical procedures, etc. These pains are no longer the symptoms of the original pain treatment department, but constitute a new painful disease, which requires treatment in the pain department. 3, neck, shoulder, lumbar and leg pain Certain patients with cervical spondylosis, spinal stenosis, lumbar disc herniation without surgical indications and patients with frozen shoulder, osteoarthritis, myofascial syndrome and osteoporosis that usually do not require surgery have persistent chronic pain and are suitable for treatment in the pain department. In addition, some painful diseases, despite the indications for surgery, but the patient is not willing to accept open surgery surgery, or postoperative efficacy is not significant, or postoperative pain and recurrence, etc., should also receive pain specialist comprehensive treatment, pain department can be minimally invasive surgery. 4, neuropathic pain According to the definition of the International Pain Society, neuropathic pain refers to pain caused by primary lesions or dysfunction of the nervous system, such as central pain, reflex sympathetic dystrophy, burning neuralgia, trigeminal neuralgia, glossopharyngeal neuralgia, occipital neuralgia, intercostal neuralgia, diabetic peripheral neuritis, etc. Neurogenic pain is a large category of very complex painful diseases, and conventional treatment is basically ineffective, often requiring special specialized techniques in pain departments, such as minimally invasive neurointerventional analgesia, spinal cord electrical stimulation, and central target-controlled analgesia techniques. Therefore, patients with this type of disease should visit the pain department. 5. Pain caused by certain chronic non septic arthritis such as rheumatoid arthritis, ankylosing spondylitis, gout, etc. The pain department can take individualized analgesic programs for different diseases, which can minimize the pain of patients and provide strong support for the treatment of the primary disease. 6.Cancer pain Pain that still exists while or after completing anti-cancer treatment can be treated with special analgesic measures in the pain department – in addition to morphine drugs, minimally invasive neurointervention techniques such as nerve block and nerve destruction can also be adopted. Modern medical research shows that cancer and cancer pain are two separate diseases closely related to each other, and the degree of cancer pain is usually not proportional to the development of cancer. Evidence shows that perfect pain treatment can not only improve the quality of life and survival of cancer patients, but also prolong their lives to a certain extent.