The pain department is a department that treats and diagnoses pain in various parts of the body caused by different reasons. The treatment scope of the pain department is as follows: 1. neck, shoulder and lumbar pain: neck, shoulder and lumbar pain caused by cervical spondylosis, cervical myofasciitis, frozen shoulder, lumbar back myofasciitis, lumbar muscle strain, lumbar disc herniation, lumbar spine osteophytes, etc., belongs to the treatment scope of the pain department; 2. chronic injury diseases of the limbs: chronic injury diseases of the limbs, including humeral epicondylitis, tendon sheath cyst, stenosing tenosynovitis, bursitis, etc. The pain caused by diseases belongs to the scope of treatment of the pain department; 3, head pain: various causes of body head pain, such as drug-dependent pain, tension migraine, etc. can also be treated in the pain department; 4, neuralgia: neuralgia, including trigeminal neuralgia, alcohol addiction neuralgia, diabetic neuralgia, burning neuralgia, intercostal neuralgia, postherpetic neuralgia; 5, cancer: treatment of various body pain caused by cancer, such as stomach cancer, liver cancer, lung cancer, breast cancer, etc.; 6, AIDS pain: sensory neuropathy in AIDS patients can cause body pain, such as headache, oropharyngeal pain, abdominal pain, chest pain, arthralgia, etc.; 7, unexplained pain: body pain caused by unexplained causes also belongs to the scope of consultation and treatment of pain department. Pain is considered to be the fifth vital sign after body temperature, heart rate, respiration and blood pressure, and is a major important indicator of feedback on the condition of the body. Long-term pain can affect normal life and health, so pain department, as a specialty for treating pain, is also very important among various hospital departments.