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Most likely an infection or a lack of circulation. If your hand has turned black, you are probably too late but should IMMEDIATELY seek medical attention, LIKE NOW!
If the hand is lost, the gang green that will follow could easily set up sepsis in the body and kill you.
Silver and or gold, because they are so soft, being rubbed on one's hands and since their fine powder is black - they blacken hands
What else can I help you with?
What causes a ring to turn your skin black?
Rusting
What causes new Bermuda grass to turn black?
Mold
What is the main force that causes a star to turn into a black hole?
Gravitation.
What causes a rubbing noise when making a left or right hand turn?
A broken car =]
What causes front wheels to turn black on a new vehicle?
Brake dust!
What causes the tips of plant leaves to turn black?
Bugs are wiping their asses on them
Why do tulsi leaves turn black?
Tulsi leaves turn black due to oxidation, which occurs when the leaves are exposed to air for a prolonged period of time. This process causes the leaves to lose their green color and turn black.
What causes skimmer basket in pool to turn black?
Too much iron in the water
What is alcaptonuria?
Alkaptonuria is an inherited condition that causes urine to turn black when exposed to air.
What happens when you rub vinegar on a spider bite?
ur hand will probably turn black
What will cause cummins QSK 23 engine return diesel to turn black?
It is the high temp and the high return Pressure inside the injector that causes the fuel To turn black
Does smoking turn your teeth black?
Smoking turns the teeth a yellow-black color because of the tar that is in it.
