Baby stool with blood mucus can be seen in diarrhea disease, milk protein allergy, intussusception and other cases, specific need to judge according to the baby’s condition. 1. diarrhea disease: in infectious diarrhea disease, can be caused by viral or bacterial infections, clinical symptoms of diarrhea, intestinal mucosa can be localized damage, the phenomenon of blood mucus in the stool. 2. Milk protein allergy: this kind of baby in eating protein food can appear the above phenomenon, mostly with its immune system immaturity, small intestinal permeability changes and genetic susceptibility and so on. 3. Intussusception: Clinical symptoms of jam-like stools, often accompanied by paroxysmal crying, perfect abdominal ultrasound can assist in the diagnosis, the need to actively seek medical intervention to avoid delayed treatment. 4. Other: such as eating dragon fruit and other foods, stools can appear like “blood in the stool”, the actual is not blood, perfect routine examination of red blood cells negative, avoid such foods, stools can be normal. There are many causes that lead to the symptoms of blood mucus in the baby’s stool, it is recommended to consult a doctor in a timely manner, assessed by a specialist to determine the cause of the disease, and then carry out targeted treatment to avoid missing the opportunity for treatment.