新生儿生后表现有呼吸困难、反应差、不吃奶、青紫等可以由多种原因引起,如新生儿窒息,新生儿原发性呼吸艰难综合症、新生儿颅内出血、新生儿原发性肺不张、新生儿羊水吸入性呼吸困难、新生儿肺出血、新生儿肺炎等等,现以几种常见疾病分别加以讨论,主要讨论呼吸困难时因换气不足、缺氧所引起的一系列病理生理改变,及临床表 Neonatal performance after breathing difficulties, poor response, not feeding, bruising, etc. can be caused by a variety of reasons, such as neonatal asphyxia, neonatal primary respiratory syndrome, neonatal intracranial hemorrhage, neonatal primary Atelectasis, neonatal amniotic fluid inhalation dyspnea, neonatal pulmonary hemorrhage, neonatal pneumonia, etc. are now discussed in several common diseases, respectively, mainly due to dyspnea due to lack of ventilation, hypoxia caused by a series of Pathophysiological changes, and clinical manifestations