超过易患新生儿自然出血症的年龄,乳儿期也能遇到因维生素K缺乏所致的严重出血倾向。近年国外已屡有报道,现搜集7例(见表1、2): 例1:90天女孩,足月顺产,第二胎,母乳喂养,无外伤史,家族无出血性疾病。患儿经常腹泻,近2个月继续服婴儿胺10袋。10天来无明显原因每日排血便2～3次,5天来皮肤出现紫癜,吐物混血1天及鼻衄1次。从今日突然抽风,计抽7次。从抽后意识不清,不发热。 Exceed the natural susceptibility to neonatal bleeding age, also encountered in infancy due to vitamin K deficiency caused by severe bleeding tendency. In recent years, foreign countries have been repeatedly reported, and now collected in 7 cases (see Table 1, 2): Example 1: 90 days girl, full-term follow-up, second child, breastfeeding, no history of trauma, family no bleeding disease. Children often diarrhea, nearly 2 months to continue to take baby amine 10 bags. 10 days no obvious reason 2 to 3 times daily discharge of blood, purpura in 5 days to the skin, spit mixed half a day and epistaxis 1 times. Suddenly draft from today, pumping pumping 7 times. After pumping unconscious, not hot.