What is the reason of giving vitamin k to a newly born child

Newborns are given a vitamin K injection shortly after birth because they have very low levels of this vitamin. Vitamin K is essential for the production of clotting factors in the blood, which are proteins that help blood to clot and stop bleeding. Without enough vitamin K, newborns are at risk of a serious bleeding disorder called Vitamin K Deficiency Bleeding (VKDB), which can cause internal bleeding, especially in the brain. The injection provides immediate protection against this condition.