If a pregnant woman has bleeding after defecation, consider the following situations: a. Hemorrhoids, which are the main cause of anal bleeding in the stool. Because after pregnancy the uterus increases to compress the intestinal canal, causing slow intestinal peristalsis, in addition to affecting venous blood return, thus prone to hemorrhoid symptoms. Dry stools can easily cause the mucosal vessels to rupture and bleed. Pre-eclampsia, straining during bowel movement, may also result in rupture of small blood vessels at the placenta attachment or at the cervical fetal membrane, resulting in a small amount of vaginal bleeding. Third, abnormal placental position, such as low placenta or placenta praevia, may cause bleeding during stool removal. Therefore, if a pregnant woman has bleeding in the stool, she should go to the hospital for examination to clarify the specific cause and treat the problem. Hemorrhoids can be treated with potassium permanganate fumigation of the vulva, while pre-eclampsia requires fetal preservation.