Hemophilia A and factor VIII deficiency
Hemophilia A is the most common form of hemophilia, occurring in about 1 in every 10,000 males. People with hemophilia A, also called "classic" hemophilia, have a deficiency in clotting factor VIII, meaning that clotting factor VIII is either missing or is present at a low level.
Treating hemophilia A
It's important to manage hemophilia A by taking steps to stop bleeds as soon as they start. There are several therapies available to treat hemophilia A.