Neonatal jaundice is one of the common symptoms in newborns, especially in the early stages. It can be categorized into physiological and pathological jaundice. If it is early-stage neonatal jaundice, the general condition of the infant is still good, but the progression of jaundice can be quick with noticeable reduction in urine and stool output, and dry skin may occur, possibly due to insufficient feeding. At this point, it is necessary to strengthen feeding. If the mother's breast milk is clearly insufficient, or the baby hardly gets any milk from breastfeeding, then supplemental feeding is required. Usually, supplemental feeding primarily involves formula feeding, and generally, babies are not given water because both breast milk and formula provide sufficient hydration. Hence, it is generally recommended not to give water to newborns with jaundice; instead, simply increase feeding.