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Why bruises turn green, then yellow

  • Close-up of a fresh bruise showing red to deep purple transition.
    handler
    Bruise color timeline
    Why does a bruise turn a whole rainbow? 👀 It starts when blood leaks under the skin after a hit.
  • Picture depicting a week-old bruise transitioning from blue/black to green
    handler
    Bruise color timeline
    Next, hemoglobin breaks down into new pigments 🩸 That shift is why bruises move from blue-purple to green, then yellow.
  • Bruises usually appear due to physical injuries that cause blood to pool under the skin.
    handler
    Bruise color timeline
    The body is cleaning house ✨ White blood cells and enzymes clear the broken-down blood, and the bruise fades away.
  • r/medical_advice - When to be worried about a bruise
    handler
    Bruise color timeline
    Normal: color changes over 1–2 weeks ⏳ Get medical advice if it lasts longer, keeps coming back, or comes with unusual bleeding.
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