Late hemorrhagic disease of infancy.

Over a period of 1 1/2 years, 9 infants ages ranging between 3 weeks and 7 months presented with the syndrome of late hemorrhagic disease related to vitamin K deficiency. All were exclusively breast fed and had not received vitamin K at birth. Four of these had acute intracranial hemorrhage, of which 2 expired and the surviving 2 have residual neurologic handicap. Of the remaining 5 who had skin and mucosal bleeds, all recovered on administration of vitamin K.