Breastfed babies with diarrhea mother’s diet generally has less impact on the child, but can be adjusted according to the cause of the baby’s diarrhea, may be helpful to the baby’s diarrhea. If the cause is lactose intolerance, lactose intake should be avoided. If the cause is enteritis due to bacterial or viral infection, a light diet may be prescribed. If the baby has congenital lactose intolerance as well as secondary lactose intolerance. When there is frequent flatulence and vomiting after breastfeeding, the acid test will be done to confirm lactose intolerance, and then the mother needs to pay attention to reducing the intake of sugar and carbohydrates and other foods. In this case, the mother needs to reduce the intake of sugar and carbohydrates, and cooperate with the lactase enzyme treatment. If the bacterial, viral infection caused by enteritis, this time the baby’s gastrointestinal motility is weak, mothers can avoid eating cold, spicy, greasy food, should eat more fresh vegetables, fruits and easy to digest food, may be helpful to the baby’s diarrhea. And at the same time to the baby with probiotics such as Bacillus subtilis diarrhea to regulate. If the diarrhea symptoms continue to worsen, go to the hospital in time. There are many other causes of diarrhea in babies, such as indigestion, cold, etc. It is recommended that babies with diarrhea consult a doctor in time for active treatment. The above medications need to be used according to medical advice.