An enlarged stomach after laparoscopic surgery may be caused by excessive carbon dioxide retention in the abdominal cavity, which can be improved by appropriate massage, increased exercise and strengthening of abdominal muscles. During laparoscopic surgery, carbon dioxide will be injected into the patient’s abdominal cavity to make the abdomen bulge, fully expanding the surgical field of view and facilitating surgical operation. The carbon dioxide gas in the abdominal cavity will usually be withdrawn at the end of the surgery, but there may be excessive residue that causes the belly to become bigger. If the belly becomes bigger after laparoscopic surgery, it is mostly considered to be caused by carbon dioxide retention in the abdominal cavity. Appropriate massage and increased exercise can be done to promote the absorption and discharge of carbon dioxide and eliminate the enlarged belly. In addition, postoperative intestinal contents decompose in large quantities under the action of intestinal flora, producing more gas, which may also lead to a larger stomach. Appropriate massage and activities can be done to promote intestinal peristalsis so that the gas can be discharged. If the stomach becomes bigger after laparoscopic surgery, it is recommended to go to the hospital for review as soon as possible and follow the doctor’s instructions for disposal.