Question: how many times a day do you need to change a newborn's diaper?
Answer: Newborns urinate approximately 20 times per day, which means that you should be changing your newborn's diaper every two to three hours at best. You don't need to wake a sleeping newborn to change his or her diaper, but if the newborn is awake, doing a diaper change as soon as you realize it's wet is ideal.