Radiofrequency ablation (RFA) is a minimally invasive treatment option used to address certain varicose veins caused by faulty blood flow. During the procedure, radiofrequency energy is delivered through a catheter to heat and close the targeted vein, allowing blood to redirect through healthier veins. At USA Vein Clinics, specialists evaluate each patient’s vein condition and symptoms to determine whether RFA may be an appropriate treatment option.