Hemophilia is an X-linked hereditary bleeding disorder caused by a deficiency of factor VIII (hemophilia A) or factor IX (hemophilia B) leading to thromboplastin production disorder that slows blood clotting. The incidence of Hemophilia is about 20/100,000 males, 80-85% of patients are Hemophilia A.

Hemophilia is an X-linked hereditary bleeding disorder caused by a deficiency of factor VIII (hemophilia A) or factor IX (hemophilia B) leading to thromboplastin production disorder that slows blood clotting. The incidence of Hemophilia is about 20/100,000 males, 80-85% of patients are Hemophilia A.

Hemophilia is an X-linked hereditary bleeding disorder caused by reduced or abnormal function of factor VIII (Hemophilia A) or factor IX (Hemophilia). In Vietnam, it is estimated that there are 6,000 patients and 30,000 carriers. Treatment of Hemophilia is to infuse deficient factor VIII or IX into the patient.