Breastfed babies within 6 months generally do not need to feed water, but there are some special circumstances, such as fever, constipation, before the opening of the milk, it is possible to additional water. For babies who are exclusively breastfed, there is generally no need to feed water without special circumstances, because breastmilk is water, and it is already enough for babies to drink, while there are some special circumstances that can feed some water, such as elevated body temperature, constipation, you can feed some water appropriately, which helps to lower the temperature and lubricate the intestinal tract. If there is low blood sugar, you can feed some sugar water appropriately before starting milk, and the general amount of water is about ten milliliters. Exclusive breastfeeding babies generally do not need to feed water, but if the baby has a fever, constipation, can be appropriate to feed some water, specific can consult a professional physician advice.