Pooping is also known as defecation. Blood in baby’s bowel movements may be caused by anal fissure, bacterial enteritis, etc. Keep the stools clear or treat with topical or oral medications. 1. Anal fissure: babies after constipation, stool column thick, through the relatively small anus, the anal canal skin cracks and cause bleeding, there will be a bowel movement with blood performance. Anal fissure baby, if it is a breastfeeding baby, the mother try to eat a light diet, do not eat too greasy and stimulating spicy food. Add complementary foods for infants appropriate to eat crude fiber is more rich in food, such as groundnuts, bananas, apples and so on. You can also apply erythromycin ointment to localized anal breaks to promote the healing of cracks. 2. Bacterial enteritis: infants are used to eating unclean hands, biting clothes, biting toys, it is easy for some bacteria to invade the intestinal tract triggering bacterial enteritis, inflammation caused by intestinal mucosal congestion, edema, mucosal necrosis, detachment of the mucous membrane will bleed, and feces mixed with the stools manifested as blood in the stools. In this case, it is recommended to go to the hospital to do stool culture, drug sensitivity test, and then according to the results of the examination to choose the appropriate antibiotics, such as penicillin, cephalosporin drug treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication. Blood in the stool of infants is a serious condition, and should be treated promptly by a doctor.