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Health Conditions
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Hemophilia
Who has it?
Both hemophilia A and B are very rare disorders. In the United States, the National Heart, Lung and Blood Institute estimates that about 18,000 males currently have hemophilia, and about 400 babies are diagnosed with hemophilia each year. Approximately one case of hemophilia A occurs for every 5,000 births. Hemophilia B is even less common with only one-fourth the occurrence of hemophilia A. The large majority of cases occur in males, but a small percentage of females may have hemophilia caused by clotting factor defects on both X chromosomes. Females who carry one set of defective genes may have symptoms such as unusually heavy menstrual periods or excessive bleeding after giving birth, dental procedures, or surgery.
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Note: The above information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist, or other healthcare professional. It is not intended to diagnose a health condition, but it can be used as a guide to help you decide if you should seek professional treatment or to help you learn more about your condition once it has been diagnosed.
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Who has it?
