The scope of pain department business treatment mainly includes the following aspects: 1. chronic pain caused by systemic soft tissue damage; 2. neuropathic pain requiring interventional destruction treatment; 3. cancer pain requiring minimally invasive treatment where drug analgesia is ineffective; 4. pain of unknown origin; 5. non-painful diseases related to nerves. The following pain clinical comprehensive classification diseases have been basically cured after the treatment of related disciplines of the underlying disease, but the patient still can not relieve pain, can go to the pain department for treatment. I. Head and facial pain: migraine, tension headache, cluster headache, post-traumatic headache, headache related to subarachnoid space puncture, trigeminal neuralgia, glossopharyngeal neuralgia, giant cell arteritis, atypical facial pain, temporomandibular joint pain, occipital neuralgia, cervicogenic headache, herpes zoster and postherpetic neuralgia. Second, neck pain: cervical spondylosis, posterior cervical myofascial syndrome, cervical disc herniation, anterior oblique angle muscle syndrome, rib-clavicular syndrome, cervical rib syndrome, traumatic neck syndrome. Shoulder and upper extremity pain: shoulder periarthritis, scapular and rib syndrome, subacromial bursitis, humeral epicondylitis, humeral medial epicondylitis, forearm hand myofascial disease, carpal tunnel syndrome, radial stem stenosis tenosynovitis, flexor tendon stenosis tenosynovitis, finger end hemangioblastoma. Four, thoracic back pain: thoracic radicular neuralgia, thoracic disc herniation, intercostal neuralgia, costochondritis, rib sternal pain, saber pain, postherpetic neuralgia, cardiac pain (angina pectoris), pleuritic pain. V. Lumbar and lower extremity pain: lumbar disc synostosis, spondylolisthesis, congenital deformity of the lumbar back, caudal disease, lumbar dorsal myofasciitis, lumbar muscle strain, lumbar ligament injury, post-operative lumbar pain, lumbar neuralgia, sciatic nerve pelvic outlet stenosis syndrome, metatarsalgia, heel pain. Soft tissue pain: myofascial pain syndrome, posterior cervical nerve branch syndrome. Chronic joint pain: deformational osteoarthritis, deformational knee arthritis, subpatellar fat pad damage, gouty arthritis, rheumatoid arthritis. Peripheral nerve disease pain: radial canal syndrome, elbow canal syndrome, carpal tunnel syndrome, carpal ulnar canal syndrome, metatarsal tunnel syndrome, superficial nerve impingement, peripheral neuritis, leg syndrome, abnormal sensory syndrome of extremities. Endocrine metabolic disorders pain: diabetic pain, hypothyroidism neuritis, osteoporosis. Peripheral vascular pain: Raynaud’s disease, erythema limb pain, hand and foot cyanosis, reticular cyanosis, arteriosclerotic occlusive disease, thrombo-occlusive vasculitis, post-phlebitis syndrome. Non-painful diseases: facial neuritis, facial muscle spasm, diaphragm spasm, inner ear vertigo, indeterminate descending syndrome, depression. Other: dysmenorrhea, cancer pain, complex local pain syndrome, sympathetic pain, phantom limb pain, residual limb pain, pruritus, skin scar pain.