This article addresses bleeding disorders in pregnancy. It is divided into three sections: maternal and fetal thrombocytopenia, thrombotic microangiopathies and inherited bleeding disorders. The section on maternal and fetal thrombocytopenia covers gestational thrombocytopenia, thrombocytopenia secondary to hypertensive disorders of pregnancy, immune thrombocytopenia and neonatal alloimmune thrombo-cytopenia. The section on thrombotic microangiopathies covers HELLP (Haemolysis, Elevated Liver enzymes and Low Platelets) syndrome, thrombotic thrombocytopenic purpura and disseminated intravascular coagulation. The section on inherited bleeding disorders covers von Willebrands disease, haemophilia A and B, factor XI deficiency and acquired haemophilia.
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