![]() In children, severe hemophilia can be identified during infancy. The diagnosis starts with examining complete medical and family history as hemophilia is an inherited condition. Pain, swelling or tightness in your joints.Unexplained and excessive bleeding from cuts or injuries, or after surgery or dental work.The signs and symptoms for both types of hemophilia are more or less similar. The pattern of inheritance and the percentage of risk can be understood from the image below: ![]() However, as carriers, women pass on the defective gene even when showing no disease symptoms. ![]() Since women inherit two X chromosomes and men inherit one, hemophilia tends to affect men frequently. So, hemophilia A and hemophilia B are X-linked recessive conditions. The genes F8 and F9 reside on the X chromosome. In India, more than 1.36 lakh individuals have hemophilia. The worldwide occurrence of hemophilia A is approximately 1 case per 5000.
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