The causes of exhaustion after pregnancy are: 1, dietary factors, because women will eat a lot of high-protein food, greasy food and high-fat food after pregnancy in order to ensure the nutrients needed for the growth of the fetus, these foods will produce a lot of gas during the digestion process in the gastrointestinal tract, and the phenomenon of exhaustion will occur. 2, hormonal influence, because the progesterone and chorionic gonadotropin hormones in the body of pregnant women are significantly elevated, these hormones will lead to slow intestinal peristalsis, the gas produced during the digestion of food in the gastrointestinal tract will be retained in the intestine and the phenomenon of intestinal flatulence. The gas produced during the digestion of food in the gastrointestinal tract will be retained in the intestines and will lead to intestinal flatulence, and when the pregnant woman is active or defecating, the phenomenon of increased exhaust will occur. 3, with the growth of the fetus, the pregnant woman’s uterus increases and compresses the surrounding intestines, leading to gas obstruction in the intestines. When the position of the pregnant woman changes, the position of the uterus will also change, and the intestinal pressure will be lifted and there will be more exhaust.