Hemophilia is caused when the plasma in the blood lacks enough protein to cause blood clotting. Hemophilia is an inherited disorder that leads to abnormal bleeding in the affected person. There are two types of hemophilia: hemophilia A and hemophilia B. Hemophilia A is more common since it affects nearly 80% of the people with this disorder. Hemophilia B is quite rare; it occurs among 20% of the people with hemophilia. The treatment of hemophilia B and hemophilia A is not curative but work towards helping the patient lead a life as normal as possible. Here are six things to know about Hemophilia B: