新生儿出血症是由于维生素K依赖，凝血因子缺乏所致．其临床特点为生后2～6天发病，以胃肠道出血多见，但7天以上发病少见，此例病人于生后用天发病，功用少见’，待报告如下：患儿，男，28天，扫族，出生本地，第一路足月顺产，母乳喂养，出生后一般状况尚好。1995年1月4日下午 Neonatal hemorrhagic disease is due to vitamin K-dependent, lack of clotting factors. The clinical features of 2 to 6 days after birth morbidity, gastrointestinal bleeding more common, but more than 7 days of onset rare, this patient in the days after birth with the onset of disease, rare "to be reported as follows: children, men, 28 days, Saigui, born locally, the first full-term follow-up, breastfeeding, the general condition after birth is still good. January 4, 1995 afternoon