Pain has been ranked by modern medicine as the fifth most important vital sign after respiration, pulse, blood pressure, and body temperature. 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 and difficult to treat, leading to dysfunction of the body’s various 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 physical, psychological and social functions of patients, but also affects their families and even society. Providing treatment for all pain patients is a common goal of healthcare services in all countries. Healthcare professionals in Pain Medicine treat a wide range of acute and chronic intractable pain, creating a pain-free and easy life for patients. Diseases covered by the Pain Unit include: 1. Headache: migraine, cervicogenic pain, myalgia, post-traumatic headache, etc. 2. Neuralgia: trigeminal neuralgia, intercostal neuralgia, sciatica, acute herpes zoster, post-herpetic neuralgia, neuropathic pain, pain after nerve injury, central pain, pain in the affected limb, stump pain, diabetic neuralgia, sympathetic nerve-related pain, complex local pain syndrome. 3. Bone and joint pain: lumbar and leg pain, cervical spondylosis, lumbar disc herniation, knee arthritis, heel pain, temporomandibular joint dysfunction syndrome, degenerative osteoarthritis. 4, tissue pain: acute and chronic lumbar sprain, lumbar muscle strain, supraspinatus interspinous ligamentitis, lumbar dorsal myofasciitis, pyriformis syndrome, fibromyalgia syndrome, tenosynovitis, frozen shoulder, tennis elbow, soft tissue injury. Cancer pain: advanced cancer pain, bone metastatic pain, etc. 6, dysmenorrhea, chronic pelvic pain. 7. Non-painful diseases: intractable hiccups (hiccups), acute facial neuritis (facial paralysis), facial muscle spasm, sudden deafness, tendon sheath cysts, vegetative nerve function disorders, etc. 9, anesthesia consultation: anesthesia examination and preparation before surgery, anesthesia and post-operative analgesia program development.