It is the web’s resource for patient based thrombophilia information. Thrombophilia is a term which includes a number of genetic conditions that increase the tendency of the blood to clot, leading to sometimes serious and life threatening complications depending on the location of the clot. Factor V Leiden is the most common hereditary blood coagulation disorder in the United States and increases the risk of venous thrombosis. You can learn more about this disease by browsing the categories located at the top of the homepage. These categories are: Recently Diagnosed that contains information and resources for those recently diagnosed; Ask the Doctor in which you will find some common questions that have been submitted by the mailing list’s members; Find a Doctor, a tool to find a doctor near your area to treat thrombophilia; Stories that includes experiences shared by individuals; Resources; and About Us, where you can find information about the Factor V Leiden.