In modern medicine, pain has been ranked as the fifth vital sign after respiration, pulse, blood pressure and body temperature. Pain medicine originates from neuroscience, anesthesiology, radiation interventional therapy and orthopedics, and is a new and marginalized discipline formed by the fusion of pain branches of these disciplines. With the development of pain treatment technology, the scope of pain clinic treatment has become more and more extensive, including: 1.Headache: migraine, cervicogenic headache, myotonic headache, post-traumatic headache, etc. 2.Neuralgia: trigeminal neuralgia, postherpetic neuralgia, diabetic neuralgia, intercostal neuralgia, sciatica, neuropathic pain, pain after nerve injury, central pain, affected limb pain, stump pain, sympathetic nerve-related pain, complex local pain syndrome, etc. 3.Intervertebral disc herniation: cervical disc herniation, lumbar disc herniation. 4.Bone and joint pain: lumbar and leg pain, cervical spondylosis, knee arthritis, heel pain, temporomandibular joint dysfunction, degenerative osteoarthritis, etc. 5.Tissue pain: tenosynovitis, frozen shoulder, tennis elbow, soft tissue injury, lumbar muscle strain, acute and chronic lumbar sprain, supraspinous interspinous ligamentitis, lumbar dorsal myofasciitis, pear-shaped muscle syndrome, fibromyalgia syndrome,. 6.Cancer pain: advanced cancer pain, bone metastatic pain, etc. 7. Non-painful diseases: intractable eruption (hiccup), acute facial neuritis (facial palsy), facial muscle spasm, sudden deafness, tendon sheath cyst, plant nerve dysfunction, etc. 8. Anesthesia consultation: anesthesia and post-surgical analgesia.