You either inherit vein disease or you don't. If you do, the valves fail as you get older and allow abnormal back-pressure to flood the surface veins making them visible and creating an unhealthy situation.
Varicose vein disease is generally an inherited disease. The risk of developing varicose veins at some point in time is 90% when both parents have varicose or spider veins for both men and women. When one parent has varicose veins, the risk of developing abnormal superficial veins is 25% for men and 62% for women. Other aggravating risk factors include aging, pregnancy, hormonal therapy, standing/sitting for long periods, and prolonged wearing of high heel shoes/ tight clothing. Although exercise does help when you have varicose veins, lack of exercise is not the cause of developing varicose vein disease.
Actually, having an active lifestyle is good for leg veins. The most common cause of unhealthy veins is genetics or hereditary, So, the propensity to develop unhealthy veins would have been inherited or passed down from your parents or grandparents. Then, life events begin to contribute. The next largest contributor to unhealthy veins is pregnancy, and veins usually get worse with each pregnancy. Then female hormones play a role. So, because of genetics, pregnancy and female hormones, women are affected with unhealthy leg veins 3 times more than men. Gravity is also a foe of leg veins, so people who tend to sit or stand for long periods of time, are also at risk. Other causes include, prior leg surgery, injury, being over-weight, and prior blood clot in legs.
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