When a pregnant woman has bleeding in the stool in the sixth month of pregnancy, if the bleeding is not particularly serious, it will not have much effect on the fetus, if the bleeding is large, it may affect the fetus. For pregnant women, the symptom of bleeding in the stool in the sixth month of pregnancy may be caused by constipation, which can be due to the dryness of the stool, thus causing the intestinal mucosa to bleed. It may also be due to anal fissure, but most of the bleeding is small, and after taking timely and effective measures, it has little effect on the fetus. It should be noted that some pregnant women with bleeding in the stool in the sixth month of pregnancy may be related to rectal tumors and other factors, especially when the bleeding volume is large, it may cause the pregnant woman to develop anemia, which will further affect the fetus, resulting in fetal growth retardation, or even stillbirth. It is recommended that pregnant women who experience bleeding in the stool in the sixth month of pregnancy should cooperate with their doctors as soon as possible to clarify the cause and provide targeted treatment and therapy.