Drinking a lot of water does not work for neonatal jaundice because there are many causes of jaundice in newborns, whether it is physiological jaundice or pathological jaundice, which is caused by increased bilirubin levels in the body, and needs to be dealt with in a certain way, especially pathological jaundice, which must be dealt with according to the cause of the disease, so as to effectively reduce the level of bilirubin in the body of the child. Drinking a lot of water not only can’t effectively reduce the child’s bilirubin level, but will also increase the burden on the kidneys, thus causing adverse reactions, such as vomiting and other gastrointestinal discomfort. Therefore, after the newborn jaundice parents must regularly check the child’s bilirubin level in the hospital, if it exceeds the high limit of physiological jaundice, promptly give the child phototherapy or blood transfusion and other therapeutic means, and can not be treated by drinking water.