At a Glance
Why Get Tested?
To help determine the cause of unexplained excessive or repeated episodes of bleeding, to diagnose von Willebrand disease (VWD), and to distinguish between different types of VWD
When to Get Tested?
When you have a personal or family history of heavy, prolonged, and/or spontaneous bleeding; when your health care provider suspects that you may have a bleeding disorder
A blood sample drawn from a vein in your arm
Test Preparation Needed?