Spider veins are small, visible blood vessels that can appear on the legs and may become a cosmetic concern. Spider vein treatment can help reduce the appearance of these unwanted veins and improve the look of your legs. Sclerotherapy for spider veins is a minimally invasive treatment that uses an injected solution to target affected blood vessels. At USA Vein Clinics, vein specialists can evaluate your concerns and determine whether sclerotherapy or another treatment may be appropriate for you.