[Willebrand's disease and pregnancy (author's transl)]

Autosomal dominant hemorrhagic disorder, Willebrand's disease causes hemorrhagic complications during post-partum period. Nevertheless our case-report as well as others's have shown that these complications only occur when there is no spontaneous biologic improvement and can be prevented by prophylactic treatment with cryoprecipitates or anti-hemophilic A fractions. This risk requires thus a regular watch of the biologic aspects during pregnancy and before the delivery date in order to decide of a possible treatment, which will be absolutely necessary in case of obstetrical surgery.