During pregnancy, because of higher estrogen and progesterone levels, muscle peristalsis slows down, the uterus increases in the 8th month of pregnancy, the abdominal cavity pressure is high, and the intestinal tube activity space is reduced, which can easily lead to constipation, which can be improved in the following three ways: first, drink more water, about 2000ml of water daily; second, eat more dietary fiber, such as seasonal vegetables, bean sprouts, celery, etc., and eat more fresh fruits; third, maintain good bowel habits If the symptoms do not improve even after all of the above, you can take the help of medication, such as lactulose. This drug is safe for pregnant women, and the amount of the drug can be decided according to the severity of their symptoms.