Varicosis, or varicose veins, caused by weakened valves in the veins of the legs, refers to a condition in which the veins of the legs become varicose, i.e. they appear swollen and bulging and can be discerned beneath the surface of the skin. Varicose veins may be dark in color or may retain their original color, ranging from a light purplish-red to an almost navy blue. They are nearly always painful. In case of prolonged varicose veins, they could be accompanied by skin peeling and skin ulcers may be seen to develop. Varicose veins are caused due to excessive pressure brought to bear on the legs or the abdomen. These are brought on by advancing age, obesity, pregnancy, hormonal changes and a host of other factors, which may include genetic or epigenetic factors as varicose veins...