When a baby has diarrhea, there is no absolute inability to eat breastmilk, but it should be analyzed according to different situations. Some babies are caused by the lactating mother eating drugs, cold food, etc. In this case, breastmilk is not suitable for the baby to continue eating, and it is necessary to suspend the consumption of breastmilk. Lactose intolerance, the sugar in breast milk is mainly lactose, some babies may be congenital or after suffering from enteritis, lactase deficiency, will appear lactose intolerance. Lactose intolerant babies have diarrhea more than ten times a day, and fart a lot, the stool is mostly yellow or greenish, thin paste or egg-flake soup-like, foamy, with milk lumps, a few babies have back milk and vomiting, also accompanied by crying and restlessness and other symptoms. At this time, breastfeeding should be stopped. Breastfeeding should also be stopped if the mother is taking medication. If the mother does not eat properly, breastfeeding should be stopped.