It has been said that pain is a gift from God to man. Being able to feel pain allows one to escape possible danger. The gift should not be wasted, and it is important to treat pain early when you experience it. Regardless of the location of the pain in the body, there is a cause, and by identifying the cause, the vast majority of pain can be treated well. The pain department mainly treats the following seven diseases. 1. Pain whose cause and family affiliation are still unclear. For example, chronic general pain, headache, chest and back pain, abdominal pain, etc. If the cause of the pain cannot be found, the pain department should be consulted. 2.Pain with no special treatment. Such as postherpetic neuralgia, post-amputation residual limb pain, chronic intractable postoperative pain after surgery, etc. 3.Cervical, shoulder, lumbar and leg pain without surgical indication. Patients with cervical spondylosis, spinal stenosis, lumbar disc herniation without surgical indications and patients with frozen shoulder, osteoarthritis, myofascial syndrome and osteoporosis who usually do not need surgery have persistent chronic pain. 4.Cancer pain. Pain can be treated in pain department while or after anti-cancer treatment. Such as nerve block, nerve destruction and other minimally invasive neurointerventional techniques. 5.Neurogenic pain. Such as central pain, trigeminal neuralgia, glossopharyngeal neuralgia, occipital neuralgia, intercostal neuralgia, diabetic peripheral neuritis and so on. This kind of pain is basically ineffective in conventional treatment, and often requires specialized techniques of pain department. 6, some chronic non-suppurative arthritis caused by pain. Such as rheumatoid arthritis, ankylosing spondylitis, gout, etc. 7, pain caused by spasm embolism of blood vessels and pipes. Such as severe pain caused by Raynaud’s disease, angina pectoris, bile duct stones, ureteral stones, etc. The treatment of pain department can effectively relieve pain, and sometimes can play a synergistic role in the treatment of diseases.