[Massive fetomaternal hemorrhage--case report].

Massive fetomaternal hemorrhage is defined as a loss of more than 30-50ml of fetal blood, transferred into maternal circulation. It can lead to severe anemization of the fetus and its consequences such as fetal hydrops or stillbirth. We present a case in which the diagnosis was based on the decresased fetal movement and pathological cardiotocography record. The Kleihauer-Betke test revealed a high percentage of fetal cells and allowed to state a proper diagnosis. An immediate cesarean section was performed and the lab tests confirmed severe anemization of the newborn.