Evaluation of Hemostasis in Bleeding and Thrombotic Disorders

This study evaluates how blood clots and bleeds in people with inherited or acquired bleeding and clotting disorders. Researchers use blood tests and other procedures to better understand how these conditions affect the body's ability to manage blood flow and clotting. You may be eligible if: - You are between 1 day and 98 years of age - You have a congenital (inherited) or acquired bleeding or clotting disorder - You have provided informed consent (or a guardian has) - You have adequate venous access for blood draws You may NOT be eligible if: - You have poor venous access that prevents sample collection Talk to your doctor to see if this trial is right for you.