Radiofrequency ablation (RFA) is a procedure to treat swollen or enlarged veins. It uses heat created from radiofrequency (RF).
Swollen, enlarged veins happen most often in the legs. Problem veins can develop when valves in veins become damaged. This causes problems with blood flow. Over time, too much blood collects in the veins. The veins may bulge, twist, and stand out under the skin. This can cause symptoms such as aching, cramping, or swelling in your legs.