患儿,男,5天。足月顺产儿。无窒息史。生下时状态良好。生后不久就开始进乳,混合喂养,不吐奶,腹不胀,每2小时进乳一次。胎便排出顺利,48小时后排出黄软便。无发热,不吐乳。一天前开始呕吐(以乳汁为主),腹胀,哭闹不安,但二便正常。入院前患儿腹胀加剧,精神欠佳,拒乳。 Children, male, 5 days. Full-term normal delivery. No history of asphyxiation. Born in good condition. Shortly after birth, she began to enter the milk, mixed feeding, not spit milk, abdominal distension, into the milk every 2 hours. Fetus excreted smoothly, 48 hours after the discharge of yellow soft stools. No fever, no spit milk. One day before the start of vomiting (mainly milk), bloating, crying uneasy, but two will be normal. Pre-hospital children with increased abdominal distension, lack of energy, refusing milk.