Varicose veins are veins in your legs that are enlarged, clearly visible under your skin, and twisted or bulging. Varicose veins are usually painless. Sometimes they can hurt, itch, or burn. If you experience one of these symptoms, it is recommended that you see your doctor. It is important to diagnose varicose veins as early as possible to prevent the disease from progressing and to avoid more serious complications. With varicose veins, compression wear can help.