Comparisons of the fibrin networks during pregnancy, nonpregnancy and pregnancy during dysfibrinogenaemia using the scanning electron microscope.

In normal pregnancy there is an increase in procoagulant activity. Furthermore, the fibrinolytic activity is impaired and remains low during labor and delivery, but returns rapidly to normal, following delivery. Here, we show ultrastructural changes in fibrin networks found in pregnant individuals and nonpregnant individuals.