@drtroubles - My friend is a hemophiliac, which means it takes a really long time for his blood to clot, because he doesn’t have the right protein to make natural clotting happen.
In the case of hemophiliacs the platelets are actually not the problem at all, but rather the body is supposed to make a special protein that gets everything working properly. This protein is sort of like the signal that tells the platelets to start sticking together and to do their job.
For hemophiliacs the condition is permanent and there is no cure and it is usually inherited. If a hemophiliac gets a bad cut they usually have to be injected with a clotting factor so the bleeding will stop.