本文作者曾遇一女婴,31天,因全身皮肤、口腔粘膜青紫急诊入院。系第二胎,第二产,足月顺产,母乳喂养。于生后第9天用自染蓝色尿布,次日发现口唇、面部发灰。一般状况良好,未加诊治。入院前三天因发热服用退热片,六小时后青紫加重,指(趾)端呈紫褐色,神萎,拒奶,曾作肺炎 The author of this article has met a baby girl, 31 days, due to systemic skin, oral mucosa bruising emergency admission. Department of the second child, the second birth, term full-term, breastfeeding. On the 9th day after birth with self-dyed blue diapers, found the lips the next day, facial gray hair. The general condition is good, no diagnosis and treatment. Three days before admission due to fever taking fever tablets, six hours later purple aggravating, finger (toe) end was purple brown, Shen Wei, refused to milk, had pneumonia