[Spontaneous miscarriages and congenital protein S deficiency: a case report].

Protein S deficiency, the protein C cofactor main physiological inhibitor of coagulation, is a thrombophilic state with various events from thrombosis to miscarriage in pregnant women. The context of hypercoagulability and hyperfibrinolysis during pregnancy induced in deciency women, an increased risk of miscarriage and his recurrence. We report the case of a 33 year-old woman whose diagnosis of protein S deficiency was made at the waning of an assessment of repeated spontaneous abortions.