The reason for more anal exhaust after pregnancy is not exactly the same between different pregnant women, however, this symptom is generally physiological and has no major relationship.1. The changes in the levels of estrogen, progesterone, relaxin and other hormones in the body after pregnancy affect the normal peristalsis and emptying function of the gastrointestinal tract, which is the main reason for the increase in anal exhaust after pregnancy.2. Dietary factors, after pregnancy, in order to provide the Dietary factors, after pregnancy, in order to provide the protein nutrients needed for the physical development of the baby, pregnant women generally increase the intake of soy products, dairy products, eggs, meat and other foods, these high-protein diets into the intestinal tract of pregnant women, in the intestinal tract of various microbial decomposition and metabolism, it will produce a relatively large amount of gas, which will make pregnant women increase the amount of anal exhaust. 3, there are also some pregnant women, the increase in the reason for the increase in exhaust is due to the abdomen is cold. After caused by the cold abdomen.