Hemophilia is an inherited bleeding disorder in which the blood does not clot properly. Blood contains many proteins called clotting factors that help to stop bleeding. These factors are numbered from 1 through 13, using roman numerals (such as I, IV, or X). People with hemophilia have either a low level of these clotting factors or none at all. The lower the level, the more serious the hemophilia, and problems such as bleeding without obvious cause or bleeding following injuries or surgery is more likely.
There are several different types of hemophilia. The following two are the most common:
Hemophilia A (Classic Hemophilia) This type is caused by a lack or decrease of clotting factor VIII (8)Hemophilia B (Christmas Disease) This type is caused by a lack or decrease of clotting factor IX (9)
The tests included in the profile are as follows: