本文报告晚发性维生素K缺乏症65例,经检查证实有颅内出血者36例,占55.6％,23例进行了头颅CT检查且均示有颅内出血。全部病例均给予维生素K治疗,对硬脑膜下出血者,8例行外科血肿清除术或硬脑膜下穿刺术。治愈30例,死亡21例(32.3％),有后遗症14例。通过对患者临床特点,颅内出血发生率和检查方法、发病因素、洽疗和预后等问题的分析讨论,以提高对本病的认识。 This article reports 65 cases of late onset vitamin K deficiency, confirmed by examination of 36 cases of intracranial hemorrhage, accounting for 55.6%, 23 cases were performed CT examination and showed intracranial hemorrhage. All cases were given vitamin K treatment, subdural hemorrhage, 8 cases of surgical hematoma removal or subdural puncture. 30 cases were cured, 21 cases died (32.3%), 14 cases had sequelae. Through the clinical characteristics of patients, the incidence of intracranial hemorrhage and examination methods, the incidence of factors, treatment and prognosis analysis and discussion to improve the understanding of the disease.