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Lately I’ve had a dull, dragging sensation in the back of my legs. I think I’ve got varicose veins.

Varicose veins are enlarged veins that are swollen and raised above the surface of the skin. 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 pool in the veins, causing them to enlarge.