维生素K缺乏导致颅内出血不同于一般新生儿出血症,其发病年龄超过了新生儿出血症的好发年龄(1~7 d),以突发性的颅内出血为突出表现。近年来,由于预防措施的提高,迟发性维生素K缺乏所致的颅内出血发病率有所降低,但基层医院临床仍不少见。迟发性维生素K缺乏所致的颅内出血是婴儿 Lack of vitamin K causes intracranial hemorrhage is different from the general newborn hemorrhagic disease, the age of onset than neonatal hypersensitivity age (1 ~ 7 d), with sudden intracranial hemorrhage as a prominent manifestation. In recent years, due to the improvement of precautionary measures, the incidence of intracranial hemorrhage caused by delayed vitamin K deficiency has been reduced, but the primary hospital is still not uncommon. Intracranial hemorrhage due to delayed vitamin K deficiency is an infant