Infants are given an injection of vitamin K shortly after birth. That vitamin is needed for blood to clot; a deficiency can cause bleeding, for example in the brain.
Newborns are already given vitamin K in most cases, but through drops. The Health Council recommended working with injections four years ago, as they work better in babies with impaired fat absorption.
Deficiency occurs mainly in breastfeeding children, because in bottle feeding contains more vitamin K than in breast milk. Even if infants have disturbed fat absorption, they still get enough of that substance through the bottle.
However, the new prick policy will apply to all babies, as it is not always clear in practice whether a baby is going to be bottled or breastfed. A surplus of vitamin K is not harmful, so it doesnt matter if a child gets a prick first and then vitamin K-rich bottle feeding.
By the way, parents can refuse the prick. The alternative is to administer drops at three different times during the weeks after birth. The new Vitamin K policy is expected to start mid-next year.