Many women face constipation after pregnancy. The reasons for constipation in expectant mothers are as follows: First, after a woman becomes pregnant, under the influence of changes in endocrine hormones, the placenta secretes a large amount of progesterone, which reduces gastric acid secretion, causes gastrointestinal muscle tension, and reduces muscle peristalsis. As a result, the food eaten stays in the gastrointestinal tract for a longer period of time and cannot be excreted normally as before pregnancy. Secondly, because the food stays in the intestine for a long time, the water in the food residue is reabsorbed by the intestinal wall cells, making the stool