Rucete Knowledge In [7]

Why is the color of the bruise purple?

If we get bruised, the capillaries inside the skin will be destroyed and the red blood cells will be trapped inside the skin.

Hemoglobin in the red blood cells can meet oxygen as it moves along the blood vessels, so it looks red.

When blood vessels are destroyed, they cannot meet oxygen..

Thus, over time, they slowly turn dark red.

That is why bruised skin looks purple.