Burping is the discharge of gas from the upper gastrointestinal tract or stomach to the mouth, while the location of the obstruction is usually located in the small intestine or even the colon, and only the gas discharged through the anus is considered to be the exhaust of intestinal obstruction. Once a patient with intestinal obstruction has anal discharge, it means that the intestine has completely or partially regained patency, and at this time, the patient can remove the gastrointestinal decompression tube and then eat a liquid diet. If patients continue to have defecation or exhaustion, they can transition from a liquid to a semi-liquid diet and gradually resume a normal diet. However, in some patients with intestinal obstruction with high obstruction location, there is gas accumulation in the distal intestinal cavity of the obstruction itself, which may also lead to anal exhaustion, so the specific situation should be combined with the patient’s abdominal signs.