患儿，女。第一胎足月行剖腹产出生7天，体重3．4公斤、生后苍白、窒息、全身紫绀，APgar评分2分，以新生儿吸入性肺炎，缺氧缺血性病住新生儿科，给予抗感染及对症治疗，后发现患儿每千哺乳后出现哭闹，继之呕吐，腹胀渐加重，时有排少量大便，为乳凝块，住院第6天，患儿腹胀 Children, women. The first full-term first-line full-term caesarean section was born 7 days, weighing 3.4 kg, after birth, pale, asphyxia, systemic cyanosis, APgar score of 2 points to neonatal aspiration pneumonia, neonatal hypoxia-ischemic disease, anti-infective And symptomatic treatment, found that after every thousand lactation children with crying, followed by vomiting, abdominal distention gradually increased, when a row of row of stool, breast curd, hospitalized 6 days, children with bloating