Abdominal distension and pain after lumbar disc foramenoscopy is considered to be postoperative anesthesia reaction, abdominal nerve pulling and other conditions. 1. Lumbar spine surgery with dural combined with subarachnoid block anesthesia, due to the rise of anesthesia plane or lumbar nerve anesthesia, resulting in postoperative gastrointestinal temporary paralysis, stomach and intestinal activity is weakened, which can cause abdominal distension, increased intra-abdominal pressure, abdominal pain can occur. Generally, it will be gradually relieved and disappear after one or two days. 2. Due to the small field of view, while removing the protruding disk, the intervertebral foramenoscopy may pull and stimulate the abdominal nerves, and the abdominal nerve contusion may lead to the gastrointestinal function being affected and abdominal pain. Continued restriction of gastrointestinal function leads to increased intra-abdominal gas and contents, increased intra-abdominal pressure, and abdominal distension. Abdominal distension and pain after lumbar disc foramenoscopy is recommended to be treated under active medical care and physician supervision.