Prothrombin Deficiency, Congenital, also known as dysprothrombinemia, is related to prothrombin deficiency and hemophilia. An important gene associated with Prothrombin Deficiency, Congenital is F2 (Coagulation Factor II, Thrombin), and among its related pathways/superpathways are Response to elevated platelet cytosolic Ca2+ and Collagen chain trimerization. The drugs Warfarin and Anticoagulants have been mentioned in the context of this disorder. Affiliated tissues include liver and bone marrow, and related phenotypes are gastrointestinal hemorrhage and epistaxis