Hemophilia is a rare genetic disorder in which the blood doesn't clot properly, leading to prolonged bleeding after an injury or surgery ¹ ² ³. This happens when there is a low level or a complete absence of clotting factors, a protein in the blood that helps form clots ¹ ² ³.
There are three forms of hemophilia ³:
- Hemophilia A, also known as "classic hemophilia," is the most common type and is caused by a deficiency in factor VIII.
- Hemophilia B, also known as Christmas disease, occurs when clotting factor IX is missing or severely deficient.
- Hemophilia C, also known as "factor XI deficiency," is a rare form of hemophilia.
Hemophilia can be congenital, meaning it is inherited from either parent, or acquired, meaning it is an autoimmune disorder that develops with no family history of hemophilia ³.
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