<unk>  (X as Roman numeral ten) is a bleeding disorder characterized by a lack in the production of factor X (FX), an enzyme protein that causes blood to clot in the coagulation cascade. Produced in the liver FX when activated cleaves prothrombin to generate thrombin in the intrinsic pathway of coagulation. This process is vitamin K dependent and enhanced by activated factor V. The condition may be inherited or, more commonly, acquired.
Factor X deficiency
Factor I deficiency
Factor VII deficiency
Factor XIII deficiency
Factor XII deficiency
Protein S deficiency
Protein C deficiency
COAT platelet defect