Gas in the stomach with pain after cesarean section may be a manifestation of various factors such as low activity level, improper diet and intestinal obstruction. 1. Low activity: after cesarean section, if the mother does not get out of bed in time to carry out appropriate activities, gastrointestinal peristalsis slows down significantly, which may lead to the accumulation of gas in the gastrointestinal tract, resulting in gas in the stomach with pain. 2. Improper diet: if the mother eats a lot of soybean, sweet potato, potato and other foods after cesarean section, these foods produce a lot of gas in the process of digestion and absorption in the gastrointestinal tract, which may cause gas with pain in the stomach after cesarean section. 3. Intestinal obstruction: After cesarean section, if the mother has intestinal obstruction caused by intestinal adhesion, it is difficult to expel the gas in the intestines, which may cause gas in the stomach with pain. It is recommended to go to the hospital in time for examination to clarify the cause of the disease, and then under the guidance of professional obstetricians and gynecologists to carry out appropriate treatment.