clerotherapy is a medical system wherein a chemical, the sclerosant, is injected into a vein to entirely obliterate it. the sclerosant damages the innermost lining of the vessel (the endothelium), ensuing in a clot that blocks the blood flow in the vein beyond. veins convey unoxygenated blood from the peripheral tissues again to the heart. since the venous blood stress within the veins is low, the blood is pumped by using forward by using contractions of the coronary heart.
to save you back-go with the flow, most veins have valves that only permit blood handiest to drift in the direction of the heart. while those valves emerge as incompetent, veins come to be enlarged and bulging (varicose). smaller veins that feed these varicose veins also can turn out to be enlarged and appear as pink or blue spider veins within the skin. varicose veins can result in a continual swelling situation of the leg known as venous insufficiency. venous insufficiency predisposes someone to leg swelling, blood clots, and skin ulceration.
even greater regularly, broken veins are manifested as unsightly spider veins. the destruction of those forms of veins can be acceptable both medically and cosmetically.