Lumbar anesthesia and epidural anesthesia, both of which are commonly used in clinical practice today. Lumbar anesthesia is characterized by fast onset, perfect analgesia, and good muscle relaxation, which is very beneficial to surgeons during surgery. Compared with lumbar anesthesia, epidural anesthesia is slightly less effective in analgesia and muscle relaxation, but epidural anesthesia can be placed into an epidural catheter, which can be administered continuously for several times, and can better meet the needs of prolonged surgery. In contrast, clinical lumbar anesthesia is usually a single administration of anesthesia, and the maintenance time is relatively short. Among the anesthesia methods commonly used in clinical practice, there is another one called combined lumbar and epidural anesthesia, which is characterized by the advantages of fast onset of lumbar anesthesia, perfect analgesia and muscle relaxation, as well as the advantages of regulating the plane of anesthesia during epidural block to meet the needs of prolonged surgery, which is also a good anesthesia method to choose.