More gas after three months after intestinal obstruction surgery is often associated with low activity, unreasonable diet, and re-obstruction. 1. Low activity: some patients are worried that exercise will affect the postoperative recovery after the surgery for intestinal obstruction. They usually choose to sit or lie down for a long time, which will cause more gas and flatulence when the peristalsis of intestines is slowed down for a long time. 2. Unreasonable diet: If you don’t eat according to the requirements after the surgery for intestinal obstruction or eat indigestible and flatulent food for a long time, it may increase the intestinal gas. 3. Re-obstruction: Improper care after surgery for intestinal obstruction or poor post-surgery results may lead to re-obstruction, which may increase the intestinal discharge. If the phenomenon of excessive bowel discharge occurs three months after the surgery of intestinal obstruction, you should consult the doctor as soon as possible, and then analyze the cause of the disease through intestinal endoscopy, abdominal plain film and other examinations, and give regular treatment.