Hemophilia B

What is it?

Hemophilia is a rare disease and is considered a rare disease.  According to data from the World Federation of Hemophilia, approximately 1 in 50,000 people is born with type B hemophilia.

Hemophilia B is less common than A. This disorder is caused by  a lack of blood clotting factor IX. Without enough of this factor, after an injury or a surgical procedure, people bleed for longer than normal.

How is it acquired?

Although hemophilia is usually transmitted through the genes  of the parents, it can also occur when there is no family history and this is known as sporadic hemophilia.

Clinical picture

Spontaneous hemorrhages or secondary to trauma. Bleeding  occurs in any  area, especially in the joints.(knees, ankles, elbows), muscles and digestive  system.


Its severity depends on the amount of factor IX  in the blood. There are three levels of severity: mild, moderate and severe.

Severe: bleeding once or twice a week, which can be spontaneous, in the muscles or in the joints.

Moderate: less frequent bleeding, such as once a month. After an injury or a  surgical procedure, they can bleed for a long time.

Mild: Bleeding after surgery or serious injury. Many may not even know they have this bleeding disorder.