Historical chart and dataset showing U.S. life expectancy by year from 1950 to 2025.

According to the Centers for Disease Control and Prevention (CDC), about 33,000 males are living with hemophilia in the United States. Hemophilia A is estimated to be 3 to 4 times more common compared to hemophilia B. Additionally, the severe form of this bleeding disorder is present in 4 out of 10 male patients. Hemophilia epidemiology forecast suggests that the disease burden of hemophilia is expected to grow steadily over time, primarily due to improved diagnosis, increased life expectancy, and broader access to treatment.