Tuesday, May 25, 2010

Why r bruises black and blue?

I am a total klutz i always have bruises but i have always wondered why they turn black and blue. wat r bruises exactly
Answer:
Bruises is an area where the tissue underneath is injured. If you injure it hard enough, it causes the muscle, the tiny blood vessels to break and leak blood which builds up in the skin causing the "black and blue" color which eventually fades away with time.
Bruises are caused when tiny capillaries beneath the skin are broken from an injury. The discoloration you see is from the blood leaking into the surrounding tissue. The color changes occur as the blood is broken down into its basic elements.
bruises are areas of pooled blood under the skin.
I believe they are black and blue because they are no longer oxygenated, they have no oxygen in the blood to make them red. Bruises are damaged or ruptured capillaries in your skin and muscle and the blood leaks into the skin.

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