本文报告48例年龄1～3月婴儿急性颅内出血,无外伤,病情均危重,苍白,前囟饱满,1/3病例有瘀虎,脑脊液血性,考虑其部分病因可能与凝血酶元复合因子缺乏有关。用维生素K及输血治疗后,除8例死亡外,其余40例恢复满意。对临床表现、病因、诊断及治疗方面与成人的不同点作了初步比较。 This article reports 48 cases of 1 to 3 months in infants with acute intracranial hemorrhage, no trauma, the condition is critical, pale, full of anterior fontanelle, 1/3 cases of bruises, cerebrospinal fluid bloody, consider some of its causes may be combined with the lack of thrombin related. Treatment with vitamin K and blood transfusions, in addition to eight cases of death, the remaining 40 cases were satisfied. On the clinical manifestations, etiology, diagnosis and treatment and adult differences made a preliminary comparison.