A bruise is a common skin discoloration that results from the breakage of tiny blood vessels leaking under the skin after a traumatic injury. Blood from damaged blood vessels beneath the skin collects near the surface of the skin to appear as what we recognize as a black and blue mark. This mark is from skin discoloration by red blood cells and their contents. A bruise is also known as a contusion.
Bruises Causes and Risk Factors
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People typically get bruises when they bump into something or when something bumps into them. Risk factors for bruises include the following:
Medically Reviewed by a Doctor on 5/1/2015
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