What are Varicose veins a sign of? What causes them? Can anybody give me any information about this? Please and thank you!
Varicose veins are swollen, twisted, and sometimes painful veins that have filled with an abnormal collection of blood.
In normal veins, valves in the vein keep blood moving forward toward the heart. With varicose veins, the valves do not function properly, allowing blood to remain in the vein. Pooling of blood in a vein causes it to enlarge.
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