Hemophilia B
Hemophilia B is a version of Hemophilia. This version is also called Christmas Disease, and it is named after the first person to be diagnosed with this particular type of Hemophilia. This version is quite rare usually only 1 out of 10 people that have hemophilia have this type of the disease. It is characterized by a lack of the growth Factor IX in the blood.
Category |
Amount of Clotting Factor |
Mild Hemophilia |
5-30 percent of normal clotting factor |
Moderate Hemophilia |
1-5 percent of clotting factor |
Severe Hemophilia |
Less that 1 percent of clotting factor |
* Normal Humans use 100% of their clotting factor IX

Photograph of a Clot
By: Tina Le and Callie Meece
Back To Homepage
Comments (0)
You don't have permission to comment on this page.