Babies need a vitamin K shot soon after birth to prevent a condition called vitamin K deficiency bleeding (VKDB). This condition can cause serious bleeding, including bleeding in the brain. When babies are born, they have low levels of vitamin K, which is important for blood clotting. The shot gives them a boost of vitamin K to help their blood clot properly and prevent bleeding problems. Even if a baby is breastfed, the shot is still recommended because breast milk has low levels of vitamin K. The vitamin K shot is a safe and effective way to protect newborns from bleeding issues. It is a routine practice in many countries and is strongly recommended by doctors to keep babies healthy and safe.