Two-month-old babies always have foamy stools, which may be caused by lactose intolerance or indigestion, etc., and can be treated with general therapy, probiotics and other medications. 1. lactose intolerance: two months old baby if breastfeeding, always pull foamy stool, accompanied by a significant increase in the frequency of stool, nausea, milk spillage, sour stool, is likely to be caused by lactose intolerance, at this time you can use the lactase enzyme preparations and other drugs, for treatment. 2. indigestion: indigestion of two months old baby may always pull foamy stool, if the child growth is good, there is no obvious nausea, vomiting, crying and other discomforts, you can take probiotics to regulate the gastrointestinal tract, combined with the pepsin loose auxiliary digestion, in addition, the mother should also pay attention to diet. Two months old baby always foam stool, there may be acute enteritis and other factors caused, it is recommended to consult a doctor in a timely manner, improve the examination, cooperate with the doctor’s treatment, the above medication need to comply with the doctor’s instructions.