The blood in the stool of pregnant women may be caused by diet and lifestyle habits, as follows: a. During pregnancy, the activity of pregnant women is reduced, the uterus will gradually increase in size with the development of the fetus and compress the surrounding intestinal tract, plus the increase in progesterone in the body after pregnancy, which inhibits gastrointestinal peristalsis so that the time of retention of feces in the intestine increases, leading to constipation and blood in the stool. Second, if a pregnant woman has a history of hemorrhoids before pregnancy, it is not excluded that hemorrhoids flare up during pregnancy, so blood in the stool of a pregnant woman may also be caused by hemorrhoids. Third, pregnant women may have blood in the stool may also be caused by the consumption of too much red dragon fruit, red dragon fruit is rich in plant fiber, plant pigments, after taking it is easy to cause people’s urine and feces become blood red. If a pregnant woman has eaten red dragon fruit before the blood in the stool, there is no need to worry too much, in addition, during pregnancy should eat more vegetables and fruits rich in plant fiber, such as bananas, spinach, etc.