新生儿脐炎是新生儿期最常见的感染性疾病。主要是由金黄色葡萄球菌或大肠杆菌感染所致,少数是由溶血性链球菌感染所致。致病菌可以来自母亲,也可以来自环境。前者是因孕母妊娠晚期被感染,经血流至胎盘而传播给胎儿,通常在出生后3天内便可发病。这种情况较少见,占新生儿脐炎病例的20%以下。后者主要是因脐带处理不当而导致的直接感染,通常是在出生后第4~5天发病,占新生儿脐炎病例的80%以上。 Neonatal omphalitis is the most common infectious disease in the neonatal period. Mainly caused by Staphylococcus aureus or Escherichia coli infection, a few are caused by hemolytic streptococcus infection. Pathogenic bacteria can come from the mother can also be from the environment. The former is due to infection of pregnant women in late pregnancy, the blood flow to the placenta and spread to the fetus, usually within 3 days after birth can be disease. This situation is rare, accounting for 20% of neonatal omphalitis cases. The latter is mainly due to improper handling of the umbilical cord caused by direct infection, usually 4 to 5 days after birth morbidity, accounting for more than 80% of neonatal omphalitis.