Baby blood should pay attention to the following situations: First, if the blood in the stool is not much, frequent episodes, we should pay attention to food allergies, common milk protein allergy or egg allergy, etc., breastfeeding with the mother’s diet. Second, pay attention to intestinal infections, usually intestinal viral infections or bacterial infections can damage the intestinal mucosa, causing mucosal bleeding. Third, we should also pay attention to part of the baby if long-term blood, pay attention to congenital intestinal malformation, such as intestinal duplication malformation, gastric mucosal ectasia, etc., and may also pay attention to polyps, tumors, can cause blood in the stool. Fourthly, if blood pulling is accompanied by symptoms of infection, especially if there are skin petechiae and ecchymosis, it is necessary to pay attention to whether the child has blood pulling because of thrombocytopenia, or coagulation dysfunction, or coagulation problems caused by severe infections.