回顾性分析经病理证实的新生儿肺出血58例,以男性早产低出生体重儿为主69％在生后24小时内发病。其病因与新生儿内在生理缺陷以及围产期窒息、感染因素心力衰竭、肺发育未成熟、凝血障碍等有关。常见并存症有羊水吸入、颅内出血、感性肺炎、败血症、心肌炎、肺透明膜病等。早期诊断困难。根据肺出血诱发因素及发机理,提出防治要点。 Retrospective analysis of pathologically confirmed 58 cases of neonatal pulmonary hemorrhage, male preterm low birth weight children accounted for 69% of the incidence within 24 hours after birth. The etiology and neonatal intrinsic physiological defects and perinatal asphyxia, infectious heart failure, immature pulmonary development, coagulopathy and so on. Common complications of amniotic fluid inhalation, intracranial hemorrhage, septic pneumonia, sepsis, myocarditis, hyaline membrane disease and so on. Early diagnosis is difficult. According to the induced factors of pulmonary hemorrhage and the mechanism of the disease, put forward the prevention and cure points.