What is the difference between hemophilia and VWD?
VWD and hemophilia are different types of bleeding disorders. VWD is caused by a problem with von Willebrand factor, whereas hemophilia is caused by a problem with another type of clotting factor (factor VIII in hemophilia A; factor IX in hemophilia B). Though both disorders are usually inherited, the inheritance pattern (the way the genes are passed down from parent to child) is different. Symptoms of VWD are usually milder than symptoms of hemophilia, but serious bleeding episodes can occur in either condition.