初产妇前置胎盘病因探讨广东省潮阳市人民医院（５１５１００）洪美芳前置胎盘是一种危害性很大的妊娠合并症，直接影响着母婴的生命安全，我院自１９９３年１月～１９９５年１２月共收治前置胎盘１１２例，占同期住院产妇的３．５％，其中初产妇前置胎盘３４例，占同期前... Cause of placenta previa in Guangdong Province Chaoyang City People’s Hospital (515100) Hongmei Fang placenta previa is a great harm to pregnancy complications, a direct impact on the safety of mother and child, our hospital since January 1993 ~ In December 1995 a total of 112 cases of placenta previa, accounting for 3.5% of hospitalized women in the same period, of which 34 cases of primiparous placenta, accounting for the same period ago ...