A little bit of bleeding in the stool in more than five months of pregnancy may be due to the fact that pregnant women have anal fissures, hemorrhoids, colon polyps and other reasons. 1. Anal fissure: pregnancy will lead to increased abdominal pressure, which will also lead to increased pressure on the rectum, resulting in the formation of venous thrombosis in the anus. It will be easy to cause anal rupture and bleeding when having a bowel movement, and there will be pain in the anus. 2. hemorrhoids: if pregnant women have hemorrhoids, good pregnancy may also aggravate the increase in abdominal pressure will make the hemorrhoids blood circulation is more poor, varicose veins will be more serious, so in the bowel movement will cause bleeding symptoms, and in the bowel movement will make the swelling out of the dry and accompanied by symptoms of pain. 3. Colon polyps: Colon polyps are one of the causes of bleeding in the stool, mostly in the colon. In this case, some pregnant women will have symptoms of blood in stool and diarrhea. If the pregnant woman in more than five months of pregnancy stool a little bleeding, it is recommended to consult a doctor in time, under the guidance of the doctor, improve the relevant examination, to clarify the cause of the disease, and take appropriate measures to deal with it.