Varicose veins are the most common disease of the venous system, commonly known as “fried legs”, with an incidence of about 8.6% in China. The main reason for the formation is that the corresponding venous pressure in the lower extremities rises after humans walk upright, and the blood accumulates in the lower extremities due to congenital weakness of the vascular wall membrane (with certain heredity), maintaining the same posture for a long time with little change or some chronic diseases that may lead to the rise of abdominal pressure (for example: long-term chronic cough, constipation and pregnancy, etc.), which destroys the venous valves under the accumulation of time. The result is high venous pressure, a symptom of blood vessels protruding from the surface of the skin. Varicose veins occur mostly in the lower extremities, but also in the scrotal spermatic cord, abdominal vena cava, and esophageal veins of the stomach.