Exclusively breastfed infants generally do not need to drink water; formula-fed infants can add an appropriate amount of water.
Whether infants need to drink water, generally need to be based on the infant’s feeding methods and weather conditions to decide, if it is exclusively breastfed infants, before 6 months, breast milk in general can be enough to meet the infant’s physical needs, so there is no need to add additional water, but the weather is hot and sweating is more, you can add the right amount of water.
If the infant is formula-fed, it is necessary to add water, but try to control the amount of each drink about 10 ml to 15 ml will be better.
If the infant has symptoms of dehydration such as low urine output and poor mental performance, prompt medical attention is recommended.