Venous System and Occurrence of Varicose Veins

The primary role of veins is to return blood from the periphery of the body to the heart. When veins are healthy, with the help of valves, they overcome the effect of gravity, and the process runs smoothly.  The slowing down of the flow of blood and its retention in the veins come when the valves degenerate, which as time goes by, creates varicose veins, most often on the legs. Varicose veins are more common in women. However, men may also be affected.

The role of the venous system and the process of the development of varicose veins

The primary role of veins is to return blood from the periphery of the body to the heart. When veins are healthy, with the help of valves, they overcome the effect of gravity, and the process runs smoothly.  The slowing down of the flow of blood and its retention in the veins come when the valves degenerate, which as time goes by, creates varicose veins, most often on the legs. Varicose veins are more common in women. However, men may also be affected.

Changes in blood vessels of the legs

In veins, there are mechanisms that push blood and are called valves. They prevent the blood from returning in the direction of gravity. The veins work in the following way - whenever the muscle pump pushes blood to the heart - to the next valve, it prevents it from going back in the opposite direction. This is the normal course of blood. When the veins for certain reasons change or get sick, transporting blood becomes difficult and venous blood remains in them for a long time. Varicose or dilated veins are baggy, often curved enlargements that occur due to changes in the wall of the venous blood vessel, as well as by the deterioration of the valves in the veins. The blood remains in the lowest parts of the legs for a long time, and they get swollen. As the valve weakens, the veins become visible beneath the skin. If such wrong blood flow leads to thrombosis, new problems arise - which are manifested by redness, pain and the swelling of that area. The blood that stays in veins is poorly processed (without nutrients or oxygen), and tissue suffers certain changes as time passes. There is a darker pigmentation. Even open wounds appear. These are venous ulcers, which are very difficult to heal.