Generally speaking, babies before 6 months of age do not need to drink extra water under normal conditions, and after 6 months of age, when they start to add complementary foods, they can be fed water appropriately. However, in special circumstances can drink water, such as formula feeding and fever and other cases can be appropriate to drink water. 1. Usually, babies generally do not need to give extra water before 6 months, because breast milk contains a lot of water, formula feeding according to the proportion of the baby can provide sufficient water. However, if the baby has fever or dry stools or vomiting and diarrhea, etc., you can feed the baby water in small amounts as appropriate. 2.6 months after the baby began to add complementary foods, the amount of milk will gradually decline, you can give the baby appropriate water to ensure that the body needs. Baby drinking water needs to be dealt with according to the actual situation, especially small months old children, do not blindly drink water, so as not to cause adverse consequences.