Endovenous ablation (ab-LA-shun) therapy uses lasers or radiowaves to create heat to close off a varicose vein.

Your doctor makes a tiny cut in your skin near the varicose vein. He or she then inserts a small tube called a catheter into the vein. A device at the tip of the tube heats up the inside of the vein and closes it off.

You’ll be awake during this procedure, but your doctor will numb the area around the vein. You usually can go home the same day as the procedure.

Source: National Heart, Lung, and Blood Institute; National Institutes of Health; U.S. Department of Health and Human Services.