All veins have one-way valves which work to keep the circulation of blood flowing towards the heart. The valves in the veins can become weak because of several reasons including. It usually starts with a knotted, bluish tinge of veins or capillaries visible just below the surface of the skin. It is estimated that about 50 to 55 percent of women and 40 to 45 percent of the men in America suffer from poor vein.

These valves can become weak leading to a pooling of blood in the veins. Studies show that more women than men suffer from poor vein health. They can cover a small or large area under the skin.

Aging veins appear as bulging, unsightly, twisted veins which may gradually grow and can make legs look lumpy and ugly. Bulging Veins - Are They Dangerous Or Just Ugly. It could be on the on the legs, thighs or even seen under facial skin surfaces. This accumulation of blood enlarges the veins and shows up as bulging, visible veins.

These swollen capillaries are close to the skin's surface.