Many people think that I don’t have any pain or itch that will hinder their lives, so why do I need to have surgery or go for treatment? Because the danger of varicose veins comes later, in the form of a series of complications brought on by varicose veins. The first common complication is that as the disease progresses, the skin becomes nutritionally impaired and venous blood stagnates. Venous blood is commonly known as garbage blood, which has very few nutrients and is a metabolic product, this garbage blood stasis will cause nutritional disorders in the legs, often in the lower and middle legs will appear skin color darkening, and even some people appear dermatitis, itching, serious patients will appear ulcers ulceration, the final end is ulcers rupture after the old bad “old rotten feet “It is not called gangrene but just an ulcer, but this ulcer can bring great inconvenience to the patient’s life.