Whether infants need to drink water with formula milk should be analyzed according to the specific situation of the child. Generally normal feeding can not drink water, such as the emergence of dry stools, hot weather, disease state and add complementary foods, need to drink water. 1. can not drink water: generally speaking within six months of the baby, whether breastfeeding or formula feeding, normal feeding can provide enough water for the baby, do not need special feeding water. 2. Need to drink water (1) six months or less of the baby, if formula-fed, dry stools, urine, yellow urine and other symptoms, you can give the baby appropriate amount of water; if the weather is hot, the baby sweats a lot, you can also feed the appropriate amount of water; in addition, the baby during the disease, such as fever, diarrhea, but also need to timely hydration. (2) six months after the baby, began to add complementary foods, the amount of activity also increased, this time you need to give the baby moderate amount of water, so as not to cause the baby dehydration.