Vein Disease
Venous disease can manifest at any age, from early teens through your nineties. Caused by valves in the veins that are weakened or not functioning properly, rather than sealing off the vein and forcing the blood to move forward, the weakened valves allow the blood to slip backwards and pool at various places in the veins. This is called Venous Reflux Disease. Even though vein disease can progress through several stages, those who suffer from it may never move beyond stage one or stage two.