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How do veins work?

April 26, 2017veins

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How do veins work?

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The main purpose of veins is to return blood up from the leg to the heart. The blood is pumped up the legs by muscle contraction and breathing. All veins have valves that help to move the blood back to the heart. When you have varicose veins, the valves do not work correctly so the blood does not move up towards the heart. Blood pools in the legs which eventually results in dilated veins giving the lumpy bumpy appearance of varicose veins.