Neuropathic pain mainly refers to pain produced without external stimulation, and is prone to clinical manifestations such as nociceptive hypersensitivity, spontaneous pain, sensory abnormalities, muscle atrophy, etc. Its lesions may occur in nerve trunks, nerve roots or plexuses, and so on. According to the different parts of the pain, it can be divided into two categories, namely, peripheral neuropathic pain and central neuropathic pain. 1. Peripheral neuropathic pain: mainly including trigeminal neuralgia, ulnar neuralgia, pterygopalatine ganglion pain, occipital neuralgia, caudalgia, intercostal neuralgia, sciatica, burning neuralgia, cervical, shoulder and brachial neuralgia, femoral neuralgia, geniculate ganglion pain, herpes zoster and so on. 2. Central neuropathic pain: mainly including spinal pain, medullary pain, thalamic pain, cerebral cortical pain and so on. If spontaneous body pain, numbness, should be timely to the hospital examination, a clear diagnosis, as soon as possible to carry out targeted treatment.