新生儿疾病常缺乏特异性症状和体征,给早期诊断带来很大困难,特别是几种常见疾病早期表现类似,如不吃、不哭、不动和体温不升,即所谓新生儿的“四不”。新生儿肺炎与婴幼儿支气管肺炎不同,可以无呼吸道症状和肺部体征。临床上常将口吐白沫和/或发绀视为新生儿肺炎的唯一症状和体征。但是我们通过对1983年6月至1985年12月共339例, Neonatal disease often lack of specific symptoms and signs, to bring great difficulties to early diagnosis, especially in the early manifestations of several common diseases are similar, such as do not eat, do not cry, do not move and body temperature does not rise, the so-called newborn “ No four. ” Neonatal pneumonia and infantile bronchopneumonia different, no respiratory symptoms and signs of the lungs. Clinical vomiting Foam and / or cyanosis often as the only symptoms and signs of neonatal pneumonia. However, we passed a total of 339 cases from June 1983 to December 1985,