Spider veins tend to recur over time and the treatment of these spider veins should be considered as a maintenance issue. They can be affected by many things including genetics, aging and sun exposure. Varicose veins are the result of malfunctioning (refluxing) valves usually of the saphenous system. If the valves have been treated then the varicose veins should not return. There is controversy with regard to exercise as to what exercise can increase veins. In general, exercise is good for veins but pounding such as running or weight lifting which increases the intraabdominal and intrathoracic pressure is not.
