Yes they do, all metall corrode when in contact with air, and knives, particularly ill-tended knives which are dull and rusty leave more. Depending on the amount and the type of metal ( most likely iron, as steel is the most common alloy for knives) you will most likely not be poisoned by it though. Criminal investigators may use these remnats to deduce what sort of weapon and make was used.
if the knife is stuck in the wound loosely and will come out easily then quickly remove it and apply immediate pressure and antiseptic to the wound. if the blade is stuck very firmly in the wound, then its best to leave it until help arrives, as there is a high chance you could make the wound worse.
A stab wound
stabgash
A stab wound, a sharp instrument trauma, a gash, a slash wound, a cut, a nick...
Yes, if you put enough force into it.
a stab Knife wounds are most commonly referred to incisions, puncture wounds, or penetration wounds.
A sharp knife cuts much better than a blunt knife. A sharp knife is less likely skid off and cause an accidental wound.
The knife wound left a scar two inches long.
If the wound is not deep and not penetrated to damage the internal organs, it should heal in about 3 weeks
Clean the wound with soap and water. Put pressure on the wound to stop the bleeding. If the cut is very deep or long you may need to see a doctor and get stitched to close the wound.
Stabilize the knife by wrapping towels around it. DO NOT REMOVE. Call for ALS if possible. Transport emergent to a hospital.
puncture or laceration, what else? clearly not a burn =P