Scar

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A wound on a human arm, and the scar that was left after it healed

A scar is the natural result of a healing process in the human body. When the deeper layer (scientists call that dermis) is hurt by a wound, the wounded tissue will be replaced by scar tissue. Scar tissue is not identical to the tissue it replaces. A scar will look different (and have different characteristics) than the surrounding tissue.

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