Constipation does not affect pregnancy, constipation is a digestive disorder and pregnancy belongs to the reproductive system, which is a different system. However, if a pregnant woman has the habit of constipation, the later stages of pregnancy will be more painful, because the fetus in the uterus is a continuous development process, the fetus grows up will compress the rectum. If a pregnant woman is usually constipated, the constipation will be aggravated in the second trimester of pregnancy, and it will even compress the rectal blood reflux, which will make the symptoms of a pregnant woman who is already suffering from hemorrhoids more obvious in the second trimester of pregnancy before delivery, thus seriously affecting the daily life of the pregnant woman. It is recommended that pregnant women in the early stages of pregnancy to develop good habits, such as daily intake of a sufficient amount of dietary fiber, such as vegetables, leafy greens and so on. Pregnant women should drink plenty of water to help prevent constipation.