In haemophilia, the blood's ability to clot is severely reduced because an essential clotting factor - a chemical within the blood - is partly or completely missing. This means that people bleed for longer than normal.
Theres two different types of Haemophilia:
Haemophilia A - a deficiency of an essential clotting factor called factor VIII, which is normally produced in the liver. The faulty gene that causes haemophilia A is found on the X chromosome (X-linked). The faulty gene is found on the X chromosome (X-linked). It's five times more common than haemophilia B.
Haemophilia B - a deficiency of clotting factor IX and also X-linked. Quite often there is no family history and the disorder is a new development because of a new genetic mutation.
Male have XY chromosomes
Female have XX chromosomes (so more of a chance that they will be carrier?)
Im not sure about why males would more likely have the condition