新生儿肺出血是指两叶以上融合出血,不包括散在、局灶性出血者。是新生儿死亡最重要原因之一,其发病机理尚未明了,临床上缺乏早期诊断的方法,治疗也不满意,被认为是新生儿疾病中第一难题。据国内外资料报道,肺出血的发病率为活产新生儿的 Neonatal pulmonary hemorrhage refers to the fusion of more than two leaves bleeding, does not include scattered, focal bleeding. Is one of the most important causes of neonatal death. The pathogenesis of this disease is still unknown. There is a lack of clinical methods for early diagnosis and unsatisfactory treatment. It is considered as the first problem in neonatal diseases. According to domestic and foreign information reports, the incidence of pulmonary hemorrhage is a live birth of newborns