Hemophilia A, also called factor VIII (FVIII) deficiency or classic hemophilia, is a genetic disorder caused by missing or defective factor VIII, a clotting protein. Although it is passed down from parents to children, about 1/3 of cases are caused by a spontaneous mutation which is a change in a gene. According to the U.S. Centers for Disease Control and Prevention, hemophilia occurs in approximately 1 in 5,000 live births. There are about 20,000 people with hemophilia in the U.S. All races and ethnic groups are affected. Hemophilia A is four times as common as hemophilia B while more than half of patients with hemophilia A have the severe form of hemophilia. The X and Y chromosomes are called sex chromosomes. The gene for hemophilia is carried on the X chromosome. You may listen by calling 646-668-8485 or download stitcher on your electronic device or you may go to www.blogtalkradio.com/pjcmedia