maternal hormones can cause temporary breast development in babies so new parents are often concerned about those little breast buds. if those breast buds are big or even leak breast milk they will freak out. when dads see their little boys with leaky breasts they want to call 911. new parents who have been adequately prepared for this "4th trimester " may know this is normal. these maternal hormones can also make the baby have a very stuffy nose. so remember: babies with boobies often have stuffy noses (perhaps just like their mothers). just the way estrogen can cause tight jeans not to fit due to premenstrual water retention the maternal estrogen can cause the same tissue engorgement in newborn and nursing babies. pregnant women especially those in the third trimester often complain that they have a constant cold. or allergy that is making them very congested and miserable. those symptoms are made worse since they are unable to take most cold medicines. these symptoms may not be a cold either but merely this flood of hormones. it is these same hormones that are transferred through the umbilical cord to the baby. since estrogen is chemically bound to fat and babies tend to have a lot of fat those hormones can stick around for a few months.
why does my baby have boobs?