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    Varicose Veins are swollen, twisted and sometimes painful veins that have filled with an abnormal collection of blood.

    You have veins and arteries running through your whole body. They are tiny tubes that carry blood to and from every part of your body, from your nose down to your toes.

    The flow of blood starts with the pumping action of your heart. When your heart beats, it pumps your blood and moves it through all those little tubes. The arteries carry the blood from your heart out to your body. and veins carry the blood from your body back to your heart.

     The blood going out to your body in the arteries is full of oxygen, which makes the blood bright red. But the flood coming back from your body in the veins is darker - sort of a purplish color - because your body parts have used up the oxygen in the blood. That's why veins look purple or blue.

     It's a lot of work to move all that blood. To do their job, veins are full of valves that help keep the blood flowing in the right direction. Valves are like tiny doors that close after the blood has passed through to keep blood moving along and to make sure it doesn't flow backward.

 

    As people get older, though, the valves might not work as well. When that happens, some blood can stay in a vein instead of moving forward like it should. This makes the vein swell up, and that the swollen vein is a varicose vein.

Causes, Symptoms and Risk factors

     In normal veins, valves in the veins keep blood moving forward towards the heart. With varicose veins, the valves do not function properly, allowing blood to remain in the veins.

    Pooling of blood in veins causes it to enlarge. This process usually occours in the veins of the legs, although it may occurs elsewhere. Varicose veins are common, affecting mostly women.