How common is hemophilia?Hemophilia mostly affects men. A woman may be a
carrier of the gene that causes hemophilia but usually
will not have any signs or symptoms of the disease. If a woman is affected by
hemophilia, the symptoms are usually very mild. Hemophilia can affect a person
of any race, although most people with the condition are white. Approximately 1 out of every 5,000 male babies is born with
hemophilia A, while 1 out of every 30,000 male babies is born with hemophilia
B.1
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