Show of Hands

Blood that doesn't clot or clots slowly.

The disease of the Kings!

Bleeding disorder

Love of blood

Hemophilia is a genetic disorder in which your blood does not clot properly. This means bruises stay around longer and are more common, and also larger wounds that may be stitched up normally could prove fatal.

Hemophilia is a disease in which there is a genetic defect in the blood clotting.

I've gotten several partially correct answers.
Factor 8 deficiency is one type of hemophilia, and the most common, but any sex-linked factor deficiency is technically hemophilia.
The ability to clot is anywhere from mildly to severely limited.

Factor VIII deficiency. This results in the blood not clotting.

Yeah, basically your blood doesn't clot so you keep bleeding, so even small cuts can be dangerous

Factor VIII deficiency. One of the many factors in the very complicated process of your blood clotting.

I believe it's someone who's blood has trouble clotting. It's a fairly dangerous condition.