Rising Refusals of Vitamin K Shots Put Newborns at Risk of Brain Bleeds

A growing number of parents are declining vitamin K injections for their newborns, a trend researchers warn could significantly increase the risk of life-threatening brain bleeds and long-term disabilities. While refusal rates remain relatively low, they are on the rise, raising concerns among medical professionals.

Why Vitamin K is Crucial for Newborns

Vitamin K is an essential nutrient that plays a vital role in blood clotting. Newborns are born with naturally low levels of vitamin K, making them vulnerable to vitamin K deficiency bleeding (VKDB), a rare but dangerous condition. A vitamin K shot shortly after birth is a safe and effective way to prevent VKDB.

The Risks of Vitamin K Deficiency Bleeding

VKDB can trigger intracerebral hemorrhage, a type of stroke caused by a ruptured blood vessel in the brain. This can lead to serious complications, including:

• Permanent brain damage
• Long-term neurological disabilities, such as cognitive impairment, seizures, or motor deficits
• Mortality (approximately 14% of infants with VKDB-related bleeding die)

Approximately 63% of infants who experience vitamin K deficiency-related bleeding develop brain bleeds.

Rising Refusal Rates

Although overall refusal rates remain under 1% in most U.S. Hospitals, data indicates an upward trend. In Minnesota, refusals increased from 0.9% in 2015 to 1.6% in 2019. Rates in California, Connecticut, and Iowa ranged from 0.2% to 1.3%, with many hospital workers reporting an increase in parents declining the shot. Refusal rates in Canada, New Zealand, and Scotland range from 1% to 3%, with some birthing centers reporting rates exceeding 30%.

Recent research published in December 2025 shows that the rate of vitamin K shot refusals has risen nearly 80 percent in the U.S. Between 2017 and 2024, climbing from 2.92 percent to 5.18 percent.

Reasons for Refusal and Broader Healthcare Hesitations

Parents who refuse the vitamin K shot are often found to have broader healthcare hesitations, including a higher likelihood of refusing vaccines. Concerns about pain and inaccurate information regarding preservatives in injections are also cited as reasons for refusal. In the US, parents refusing vitamin K were 90 times more likely to refuse the hepatitis B vaccine and eye medicine for newborns. In Canada and New Zealand, refusal rates were 15 and 14 times higher, respectively, regarding childhood vaccinations by 15 months of age.

The Importance of Prenatal Counseling

Researchers emphasize the need for healthcare professionals to provide comprehensive prenatal counseling to parents, ensuring they understand the benefits of vitamin K and the potentially devastating consequences of VKDB. The vitamin K shot is a supplement, not a vaccine, and is both safe and effective in preventing a potentially fatal condition.

Key Takeaways

• Newborns have naturally low levels of vitamin K, essential for blood clotting.
• Vitamin K deficiency bleeding (VKDB) can cause life-threatening brain bleeds and long-term disabilities.
• A vitamin K shot at birth is a safe and effective way to prevent VKDB.
• Refusal rates of the vitamin K shot are rising, raising concerns among medical professionals.
• Parents who refuse the vitamin K shot are more likely to have broader healthcare hesitations.