The baby ate breast milk dilution may be related to physiological factors, but also may be related to indigestion, lactose intolerance and other factors, the specific analysis is as follows: 1. physiological factors: the baby intestinal tract is not well developed, the digestive function will be relatively weak, after eating breast milk, there may be an increase in the number of stools accompanied by milk petals and so on, if there is no other phenomenon, are a normal physiological situation, do not need special treatment. 2. Indigestion: If you don’t pay attention to the feeding method and feeding pattern, you may have indigestion and sour odor. 3. Lactose intolerance: babies can’t digest and break down the lactose in breast milk, thus lactose intolerance leads to diarrhea. Breastfeeding diarrhea may also be related to other causes, it is recommended to go to the hospital in time for relevant examinations, to clarify the cause of the symptomatic treatment.