Breastfed babies with loose stools may be related to lactose intolerance, milk protein allergy, indigestion and so on. 1. Lactose intolerance: generally babies within three months of birth may have lactose intolerance, especially breastfeeding, and are prone to loose stools and farting. 2. Milk protein allergy: babies may be allergic to some substances in breast milk, which can be manifested as loose stools, diarrhea, eczema and other conditions. 3. Indigestion: If the mother does not pay attention to the diet, eat spicy and stimulating, raw and cold food may cause symptoms of loose stools. Breastfed babies may also have other causes of loose stools, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor’s treatment.