我院自1992年～1995年共收治68例晚发性维生素K缺乏症，总结如下。临床资料一、一般情况：全组68例，男45例，女23例。年龄＜1个月12例，～2个月36例，～3个月20例。母乳喂养问例，人工喂养7例。诱发病因。腹泻18例，上呼吸道感染10例，眼用抗生素11例，婴儿肝炎综合征9例。均 Our hospital from 1992 to 1995 were treated 68 cases of delayed vitamin K deficiency, summarized as follows. Clinical data First, the general situation: the whole group of 68 patients, 45 males and 23 females. 12 cases were aged <1 month, 36 cases were ~ 2 months and 20 cases were ~ 3 months. Breastfeeding cases, artificial feeding in 7 cases. Induced etiology. 18 cases of diarrhea, upper respiratory tract infection in 10 cases, ophthalmic antibiotics in 11 cases, 9 cases of infant hepatitis syndrome. all