The Vitamin K Shot for Newborns: What New Parents Should Know

Welcoming your new baby is exciting and scary at the same time, and parents are thrust into decision-making immediately after birth. One of those decisions is whether to give the baby a vitamin K shot. Vitamin K is essential for clotting, and prior to the introduction of routine vitamin K shots, infants were at risk of vitamin K–related bleeding that could result in serious complications and even death. In fact, 1 in 60 infants had some form of bleeding in the newborn period, with some infants bleeding as late as 6 months afterward.

Why Newborns Need Vitamin K

Vitamin K is poorly transferred through the placenta, and newborns have very poor uptake of oral vitamin K. This is especially true for breastfed infants, since the levels of vitamin K in breastmilk are low. The answer is to give them a small injection right after birth. Vitamin K is a fat-soluble vitamin, so it's stored for about 3 months, but some is released immediately and starts protecting infants that same day.

A Safe, Well-Established Practice

It was in 1961 when the American Academy of Pediatrics first recommended routine vitamin K shots, and the risk of life-threatening bleeding in the newborn period plummeted. Parents may worry about side effects, and some are told there's a link between the vitamin K shot and cancer — but that claim has been thoroughly debunked and is not true. It's a safe shot, not a vaccine, and has almost no side effects.

We're Here to Answer Your Questions

Deciding what's best for your new baby can feel overwhelming, and it's completely normal to have questions about routine newborn care like the vitamin K shot. We're always happy to walk through the details with you, whether your baby has already arrived or you're still preparing.

Contact us today online or call 410-647-8300 — we're glad to answer any questions about the vitamin K shot or your newborn's care.