Christmas disease (Hemophilia B), is an inherited deficiency of a plasma protein active in the formation of blood clots.

Christmas disease symptoms

Hemophilia B has the same symptoms as classic hemophilia (hemophilia A), prolonged bleeding from slight injuries and internal bleeding without any known cause.
Christmas disease is usually less severe than classic hemophilia; its severity is dependent on the extent of the plasma protein deficiency.

Christmas disease treatment

Transfusion of blood plasma containing the correct clotting factor is the appropriate treatment.
The condition gets its name from the patient in whom it was first discovered.