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Bruises (contusions) occur when
small blood vessels under the skin tear or rupture, most often from a twist,
bump, or fall. Blood leaks into tissues under the skin and causes a
black-and-blue color that often turns purple, red, yellow, and green as the
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine
Current as ofMarch 20, 2017
Current as of:
March 20, 2017
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
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