Normal scratches, cuts should never "drip" blood to the ground; unless an artery was damaged and then medical help is required fast.
A normal scratch, cut, should not bleed--unless the blood is dirty.
Dirty blood full of rock water minerals and undigested food waste, will need to bleed..
dirty rock filled blood will scar
clean blood never scar
Cleaned blood over time will dissolve old scars and skin be scar free--those taking drugs, drinking rocky/chemical filled water will have zero success.