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bruise (contusion of the skin)

cross section of the skin.

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 colour that often turns purple, red, yellow, and green as the bruise heals.

current as of: july 10, 2023

author: healthwise staff
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