Babies who are exclusively breastfed generally do not need additional water, but it needs to be determined on a case-by-case basis.
Babies up to 6 months old can be exclusively breastfed, only give the baby pure breast milk, no other food, including water, if overfeeding water, on the contrary, affect the baby’s appetite, may affect the baby’s growth and development.
However, it also depends on the specific situation. If the amount of breast milk is not very sufficient, you can give the baby an appropriate amount of water at your discretion; if the baby sweats more, you also need to give the baby an appropriate amount of water to properly replenish the water.
Babies over 6 months old can add complementary foods, but when the amount of breastmilk is sufficient, you can also stop feeding extra water. Note: The content of the online Q&A is for reference only. If your baby is unwell, please go to a regular medical institution to avoid delay in treatment.