Diseases and Disorders, Disorders of Coagulation Factors
Last Updated: October 28, 2025 Introduction to Hemophilia B Hemophilia B, also known as factor IX deficiency or Christmas disease, is an X-linked recessive bleeding disorder caused by defects in the vitamin K-dependent enzyme, factor IX, of the clotting...
Diseases and Disorders, Disorders of Coagulation Factors
Last Updated: October 28, 2025 Introduction to Hemophilia A Hemophilia A is referred to as classic hemophilia and was first recognized in the second century AD. The disease is an X-linked recessive bleeding disorder caused by defects in the clotting...