Varicose veins are swollen, dark blue or purple blood vessels that you can see and feel beneath the skin. They often look like twisted cords, and usually appear on the calves, inside of the legs, and ankles.

Varicose veins form when the valves within a vein weaken and allow some blood to flow backward. The vein weakens under the additional strain and balloons outward, raising the skin surface.

People with varicose veins seek treatment either to reduce discomfort or improve the cosmetic appearance of their legs. The treatment takes care of the discomfort associated with the condition such as swelling, fatigue, achiness, "restless legs", itching and cramps. Sometimes, however, more significant problems can develop if veins are left untreated. Bleeding infection and skin damage or ulcers are also possible complications. For this reason, patients with varicose veins should be examined by a professional.

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