Varicose veins are the most common disease of the venous system. The main reason for the formation of varicose veins is that the blood accumulates in the lower extremities due to the congenital weakness of the blood vessel wall or because the same posture is maintained for a long time with few changes, and the venous valves are damaged over time, resulting in high venous pressure and the protrusion of blood vessels from the skin surface. Varicose veins occur mostly in the lower extremities, but also in the scrotal spermatic cord, abdominal vena cava, and esophageal veins of the stomach. The main feature is that the blood vessels protrude from the surface of the skin, like earthworms, curved and lumpy. Varicose veins in the lower extremities generally go through a course of more than 10 years and gradually cause edema in the lower extremities, darkening of the skin of the lower legs (hyperpigmentation), bruising dermatitis, painful venous thrombosis, and even ulcers. In the past, the knowledge of varicose veins has often been based on the fact that standing for a long time causes varicose veins to develop due to increased venous pressure. Scientific studies have shown that in addition to prolonged standing, varicose veins have a relationship with prolonged sitting and estrogen. Unlike men, varicose veins in women mostly occur in the urban office population. According to statistics, about 25-40% of women and 20% of men in Taiwan suffer from varicose veins. Teachers, surgeons, nurses, hair stylists, counter girls, chefs, restaurant waiters and other occupations that require long hours of standing are all high risk groups. Formal conservative treatment includes: 1, avoid prolonged standing or sitting posture, walking can use the pumping action of calf muscles to promote venous return; 2, elevate the lower limbs to relieve edema and other symptoms; 3, wear elastic stockings with pressure gradient can slow down the development of the disease; 4, some drugs can play a supplementary treatment role, commonly used are Avalanche, Mizarin tablets and so on. However, if you want to treat varicose veins completely, surgery should be the first choice.