In the first few hours of a newborn’s life, doctors administer a vitamin K shot. This is because infants are born without enough of the vitamin, and the baby needs a boost to prevent any potential bleeding. This is a routine practice—ask your pediatrician, your obstetrician, or the CDC. “Babies are born with very low stores of vitamin K, and without the Vitamin K shot ... they do not have enough Vitamin K in their blood to form a clot,” the CDC says on its website.
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