01/12/2026
Starting with a focus on the Ultra-Rares, we already have our eye on Rare Disease Day at the end of February! In the US, a rare disease or disorder is defined as one that affects fewer than 200,000 people. vWD is the most common while approximately 33,000 males are affected by Hemophilia A or B. The less-common factor deficiencies such as I, II, V, VII, X, XI, XII and XIII, are all considered ULTRA Rare Disorders.
Many people, especially women with VWD, are unaware they have a bleeding disorder or undiagnosed and underrepresented in the numbers of bleeding disorders in this country. Swipe through the stats we have put together shedding light on the Ultra-Rare numbers!