The reason why women become constipated after pregnancy may be due to the consumption of spicy and stimulating foods, the influence of gastrointestinal peristalsis, and the enlargement of the uterus pressing on the rectum and other factors. 1. Spicy and stimulating foods: during pregnancy, spicy and stimulating foods are eaten more, or fiber-rich vegetables and fruits are eaten less, leading to bowel movements in the intestines are not smooth, so pregnant women will have constipation. 2. affect the gastrointestinal tract peristalsis: may be pregnant women in the pregnancy after its activity is reduced, thus affecting the normal gastrointestinal tract peristalsis, so pregnant women will also appear constipation performance. 3. uterine enlargement pressure rectum: may be due to the enlargement of the uterus downward pressure stimulation to the pelvic floor of the veins, and even pressure to the rectum, thus affecting the rectal bowel movements and the performance of pregnant women constipation. Pregnant women should eat more fruits and vegetables rich in dietary fiber, eat less spicy and stimulating food, also drink more water, but also appropriate activities to promote gastrointestinal motility. If the relief is not satisfactory, it is recommended to consult a doctor in time, under the guidance of the doctor for medication, avoid self-medication, so as not to affect the fetus.