Varicose veins are gnarled, enlarged veins. Any vein has the potential of becoming varicose, but the veins most commonly affected are found in the feet and legs. This is due to excessive standing and walking, which increases the pressure in the veins in your lower body. There are plenty of people who suffer from varicose veins or a more common and mild form called spider veins. Unfortunately with the higher level of severity also comes additional effects of aches, pain, and discomfort. Varicose veins can even lead to more serious problems such as blood clotting.