Hemophilia B affects 1 in 20,000 to 34,500 males worldwide.
Other Names for Hemophilia B
Other names for hemophilia B include:
Christmas disease
Factor 9 (IX) deficiency.
Hemophilia B: Things to Remember
Key information about hemophilia B includes the following:
Hemophilia B is a rare type of hemophilia, an inherited bleeding disorder. Approximately 1 out of 10 people with hemophilia have hemophilia B
Hemophilia B almost always occurs in males.
A baby born with hemophilia B has a problem with certain proteins in the blood, called factor 9 clotting factor. Clotting factors help blood clot.
Hemophilia can be due to a low level of clotting factors or due to a clotting factor that is completely missing.
When clotting factors are missing, or your body does not have enough clotting factors, it can take a long time for your blood to clot after an injury or accident. Bleeding often occurs internally.
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