why hemorrhagic disease tests due to vitamin k deficiency in infancy
Vitamin K Deficiency Bleeding (Hemorrhagic Disease of the Newborn) Vitamin K deficiency bleeding (VKDB) is a bleeding problem that occurs in some newborns during the first few days of life. VKDB was previously called hemorrhagic disease of the newborn. Babies are normally born with low levels of vitamin K, an essential factor in blood clotting. A deficiency in vitamin K is the main cause of VKDB. Vitamin K deficiency may result in bleeding in a very small percentage of babies.