Question

My child is 53 days old and has been having diarrhea while breastfeeding. It comes out as soon as they strain, and their little bottom is all sore. They don’t seem to sleep comfortably either. When I feed them formula milk, they stop having diarrhea, and they sleep better. I just breastfed them today, and their bottom is already sore again. I want to know what’s going on?

Answer

Based on your description, this situation may be due to the baby’s lactose intolerance to breast milk. Lactose intolerance causes the baby to have difficulty absorbing lactose in breast milk, which is why they have no issues when fed formula milk (which contains less or no lactose). It is suggested that you stop breastfeeding and switch to formula milk for feeding, as long-term breastfeeding may cause harm to the baby. I hope these suggestions can help you solve the problem, and wish you and your baby good health!