Hemophilia is perhaps the most well-known bleeding disorder. There are three types of hemophilia - hemophilia A, the most common type, hemophilia B, also called Christmas disease, and hemophilia C, the rarest type. In 2017, it was estimated that over 13,600 people in the United States had been diagnosed with hemophilia A, while around 4,100 had been diagnosed with hemophilia B. Hemophilia is more common among males than females, with around 90 percent of hemophilia A cases worldwide occurring among males. Modern treatments for hemophilia have greatly increased the life quality and expectancy of those suffering from the disorder. Before current available treatments, the life expectancy of someone with hemophilia was only 30 years, but today someone diagnosed with this disorder can expect to live up to 68 years on average.
In 2017, it was estimated that 11,336 people in the United States had been diagnosed with von Willebrand disease (VWD). Much like with hemophilia, VWD also has several types, most commonly type 1, type 2, and type 3. As of 2018, females accounted for about 65 percent of all type 1 VWD patients, while they accounted for 51 percent of type 3 VWD patients. VWD is most commonly inherited from a parent and is much more prevalent among the white population in the U.S. than among other ethnicities. Although there is no cure for VWD, with self-care and quality treatment, most of those diagnosed are able to lead active lives.