迟发性维生素K缺乏症是指渡过新生儿自然出血症时期后的婴儿,由于维生素K缺乏而出现出血表现者。主要见于发育较好的人乳喂养儿,用维生素K治疗效果显著。现将我科近年来收治的11例报告如下: 临床资料本组男8例,女3例。发病年龄最早为生后第15天,最晚为3个月。除1例为早产儿外,其余均为足月儿。全部为纯母乳喂养儿。入院前10例曾有发热,并使用过抗生素治疗。本组6例表现为口腔粘膜下出 Delayed vitamin K deficiency refers to the baby after crossing the period of neonatal natural bleeding, due to lack of vitamin K bleeding showed those. Mainly seen in the development of better human milk fed children, with vitamin K treatment significantly. Now my department admitted in recent years, 11 cases reported as follows: Clinical data The group of 8 males and 3 females. The earliest age of onset is 15 days after birth, the latest is 3 months. In addition to 1 case of premature children, the rest are full-term children. All for pure breastfeeding children. 10 cases before admission had fever, and the use of antibiotics. The group of 6 cases showed oral submucosal out