Clotting occurs to stop you bleeding to death when you have cut yourself.
A clot is just a mesh of fibrin fibres that act as a block for the injury, so the blood doesn't continue to pump out.
If you don't clot enough, you can bleed to death or get lots of bruises, but if you clot too much, you can have strokes and deep vein thrombosis.
Drugs can be taken to reduce the risk of deep vein thrombosis.
Haemophilia is a genetic…