Is chorioamnionitis the cause of the spontaneous fetomaternal hemorrhage?

Abstract Background Fetomaternal hemorrhage (FMH) is a rare and serious pregnancy event, but the risk factors and pathogenesis of FMH are still unclear. Case presentation This paper reports three cases of fetomaternal hemorrhage with unexplained reasons. The three cases required emergency caesarean sections for non-reassuring fetal status and were treated with neonatal blood transfusion. Fetomaternal hemorrhage was confirmed via maternal Kleihauer-Betke test. Conclusion We found that reduced fetal movements, the sinusoidal model and increased MCA-PSV may be important indicators for early diagnosis of fetomaternal hemorrhage, and chorioamnionitismay be one of the causes of spontaneous fetomaternal hemorrhage.