Spider veins and small varicose veins can be treated with laser treatment applied from the surface of the skin. The laser applies an intense energy that essentially destroys the small blood vessels in the surface of the skin. Results are variable, and multiple treatments may be necessary to have some benefit. This procedure is generally less invasive than sclerotherapy and vein stripping (no insertion of needles or catheters is required).
Larger varicose veins may be treated with endovenous (inside the vein) catheter ablation or laser surgery. This basically involves inserting a probe (or catheter) into a large vein in the lower leg (saphenous vein) and closing the vein by applying heat generated through laser. This technique has proven to be less painful, and it also has a faster recovery time compared to vein stripping surgery.