Vericose veins - causes, symptoms and treatment

Vericose veins Veins are thin-walled vessels through which the impure blood is carried back to the heart. They usually have valves which regular the flow of blood towards the heart. Varicose veins are a condition in which veins become enlarged, dilated or thickened. Varicose veins can occur in any part of the body but generally appear on the legs. The veins of the legs are the largest in the body and they carry the blood from the lower extremities upwards towards the heart. The direction of circulation in these vessels is largely determined by gravity. Though there are no mechanical obstacles to blood-flow, it is usually the incompetence of the valve which leads to an increase in intravenous pressure. Varicose veins have an unsightly appearance and can be dangerous. A blood clot within a large,greatly dilated vein may breakaway and move toward the heart and lungs, causing serious complications. Accordin...