Genetic analysis of the FVIII gene identifies a mutation in up to 98% of people who have hemophilia A, while analysis of the FIX gene identifies a mutation in over 99% of those who have hemophilia ...

Hemophilia and von Willebrand disease (VWD) are bleeding disorders that share similar symptoms. Both conditions make it more difficult for the blood to clot. Both conditions can also be genetic ...

Hemophilia B is a rare genetic disorder caused by insufficient levels of a circulating protein called factor IX, which promotes blood clotting. The researchers used a one-time gene therapy ...