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Why Do Bruises Change Colors?

Key Facts In This Video

  1. Bruises seem to change in color as the body breaks down the hemoglobin and reabsorbs its component parts. 00:45

  2. Heme molecules get broken down by enzymes into another molecule called biliverdin, which happens to be green. 01:16

  3. Hemosiderin, which has been sitting underneath the skin, finally beings to show as the rest of the components break down, allowing its brown pigment to become more visible. 01:32