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You are here : 3-RX.com > Medical Encyclopedia > Diseases and Conditions > Hemophilia A
      Category : Health Centers > Blood Disorders and Lymphatic System

Hemophilia A

Alternate Names : Congenital Factor VIII Deficiency

Overview, Causes, & Risk Factors | Symptoms & Signs | Diagnosis & Tests | Prevention & Expectations | Treatment & Monitoring

Hemophilia A is an inherited condition. It results from a lack of an important blood clotting protein.

What is going on in the body?

An individual with hemophilia A has poor blood clotting. The missing clotting protein, which is called factor VIII, causes the problem. Hemophilia A is one of the most common inherited bleeding disorders. It affects primarily men.

What are the causes and risks of the disease?

Inheriting an abnormal X chromosome usually causes hemophilia. This chromosome is usually passed down from the mother. Men have only one X chromosome, while women normally have two. This means that a woman usually has to inherit two abnormal X-chromosomes, while men only need one, to get the disease. Because of this, males more commonly get hemophilia.


   

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Hemophilia A: Symptoms & Signs

Author: Thomas Fisher, MD
Reviewer: Adam Brochert, MD
Date Reviewed: 09/24/01



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