[Intracranial hemorrhage caused by vitamin K deficiency in early infancy. Still a problem?].

A case of intracranial hemorrhage in a one month old infant is reported. A review of the prodromal symptoms presented by this infant seems useful to delineate a clinical picture that should allow a timely recognition of this problem in the population at risk. Furthermore, the relative frequency of this entity, due to vitamin K deficiency, in the first months of life in exclusively breast-fed infants, confirms the advisability of vitamin K supplementation at birth.