Generally speaking, the first thing you can do for back pain is to register with an orthopedic surgeon. If there is a spinal surgery department in the hospital, the first choice is to register for spinal surgery. The spine and its surrounding muscles and other soft tissues belong to the scope of spine surgery. If the cause of the pain is unknown and the pain continues to worsen, you can register with the pain department. If the back pain is caused by lumbar disorders, such as lumbar disc herniation, disc degeneration, hunchback, ankylosing spondylitis, etc., you can register for orthopedics or spine surgery. In case of internal disorders, the cause needs to be clarified to the relevant department. For example, peptic ulcer, rectal cancer, pancreatic cancer and other diseases of the digestive system can also lead to back pain, so you should go to the Department of Gastroenterology for causal treatment; for urinary system diseases such as pyelonephritis and kidney stones, you should go to the Department of Urology with symptoms; for gynecological diseases such as pelvic inflammation and pelvic tumor, you should go to the Department of Gynecology; for scoliosis caused by neurological diseases, you should go to the Department of Neurosurgery. If it is a simple lumbar strain or other diseases, the first time you can register orthopedics, the second time you can go to the pain department or rehabilitation physiotherapy department, which generally use conservative treatment such as massage, physiotherapy, massage, acupuncture, the use of non-steroidal anti-inflammatory drugs and other methods. Because of the various causes of back pain, the department must be judged according to its own symptoms.