世界卫生组织、疾病防控中心以及美国儿科学会都提倡新生儿生后在住院期间给予纯母乳喂养,而不需要提供配方奶和水。美国60%的新生儿至少在生后前两天接受纯母乳喂养。产妇在初乳分泌期奶量相对较少,可能导致新生儿入量不足,因此生后最初几天的体重丢失是很普遍的。对这种暂时的肠内摄入不足所致的体重丢失大多数新生儿是可以 Both the World Health Organization, the Centers for Disease Control and Prevention and the American Academy of Pediatrics advocate exclusive breastfeeding during newborns’ life after hospitalization without the need for formula milk and water. Sixty percent of newborns in the United States are exclusively breastfeeding at least two days after birth. Maternal colostrum during the secretion of milk is relatively small, may lead to insufficient intake of newborns, so the first few days after birth, weight loss is very common. It is okay for most newborns to lose weight due to this temporary lack of intestine