About Hemophilia
Hemophilia is a rare bleeding disorder caused by a lack of clotting factor in circulation. Insufficient levels of clotting factor can make it difficult or impossible for blood to clot. The two most common types of hemophilia are hemophilia A and hemophilia B.1 To learn more about hemophilia and how it's treated, please click the links below.
Reference: 1. Roberts HR, Key NS, Escobar MA. Chapter 124. Hemophilia A and Hemophilia B. In: Prchal JT, Kaushansky K, Lichtman MA, Kipps TJ, Seligsohn U, eds. Williams Hematology. 8th ed. New York: McGraw-Hill; 2010. http://www.accessmedicine.com/content.aspx?aID=6117504. Accessed May 11, 2012.