The blood of people with hemophilia functions normally in the first three stages—the constriction of the blood vessels, the adhesion of platelets at the site of the injury and the aggregation of other platelets and proteins to plug the hole. These three steps are usually sufficient to stop bleeding from minor cuts.

What happens when a hemophiliac gets cut?

Some people think a person with hemophilia can bleed to death from a small cut. This is not true. Usually small cuts and scrapes stop bleeding just fine. A person with hemophilia has problems when a fibrin clot is needed to stop the bleeding.

How do hemophiliacs have periods?

It is caused by a lack of clotting factor proteins in the blood. As a result, people with hemophilia may experience excessive and longer-than-usual bleeding after physical injury or trauma, but they can also experience bleeding without injury or any obvious trigger.