The risks of lumbar anesthesia are greater than those of general anesthesia. General anesthesia is theoretically a sedative drug used to keep the airway open, which puts the person in a deep sleep state and reduces pain. In contrast, lumbar anesthesia is a puncture in the spinal canal, and after the puncture requires the injection of drugs into the spinal canal. The risk of general anesthesia is the use of drugs that can cause a person to suffocate, so it is important to keep the airway open. Lumbar anesthesia involves placing a tube into the spinal canal and administering the medication directly to the spinal canal. The risk of lumbar anesthesia is greater because it can cause the following risks: 1) anesthesia of the whole spinal cord; 2) the formation of a local hematoma, which can compress the spinal cord and cause symptoms; 3) direct damage to the nerve roots or spinal cord. Therefore, compared with general anesthesia, the risk of lumbar anesthesia is greater.