Infant diarrhea may be related to breast milk, for example, lactose intolerant babies can show signs of diarrhea after eating breast milk. But it can also be caused by diseases such as acute gastroenteritis. Infant diarrhea may be caused by breast milk, such as lactose intolerant babies eat breast milk, can lead to lactose can not be digested, thus appearing diarrhea performance, but good appetite, generally no other discomfort symptoms, and will not affect the normal growth and development, can be in the doctor’s guidance to add the lactase and continue breastfeeding. However, diarrhea in infants may also be caused by other reasons, such as acute gastroenteritis, intestinal flora imbalance and so on. If a baby has diarrhea, it is recommended that parents take the baby to the hospital in time to improve the stool routine and other tests, and then follow the doctor’s instructions to be targeted treatment.