Two recent studies found that parental refusal of the newborn vitamin K shot more than doubled between 2017 and 2025, while cases of vitamin K deficiency bleeding (VKDB) in infants increased by nearly 350 percent. News coverage of the findings has prompted online discussion about the shot’s benefits and safety. Some parents are asking why newborns need vitamin K, whether infants who missed the shot at birth can receive it later, and whether oral vitamin K drops are an effective alternative.
Other commenters are sharing false claims that the shot increases the risk of allergies or childhood leukemia, or that delayed cord clamping and vitamin K supplements during pregnancy can provide the same protection against VKDB.
Recommendation
Communicators may use the new research and conversation to educate expectant parents about VKDB, the importance and established safety of the vitamin K shot, and why it is recommended for all newborns. Messaging may also address questions about infants who missed the shot at birth and explain why oral drops, delayed cord clamping, and prenatal supplementation are not equivalent alternatives. Equipping trusted messengers is recommended, especially prenatal care providers and maternal health organizations who can help address questions about the shot before delivery.
Reading links: The Washington Post
Communication resources: Share this two-page resource on understanding the vitamin K injection
