Varicose veins are a disease that almost only humans suffer from, due to the higher venous pressure on the distal veins of the lower extremities after humans walk upright, which makes the vessels dilate and gradually become tortuous and accompanied by the destruction of the valves. This condition often has four complications, as follows: 1. bruising dermatitis: under the premise of tortuous and dilated blood vessels, the skin becomes venous dystrophy, with some light brown petechiae, petechiae, gradually fusing into patches. 2. bleeding: due to dilated and thinning superficial veins and dystrophy, bleeding can easily occur under minor scraping or spontaneous situations, often painless and with large bleeding, even life-threatening. 3. . 3.Thrombosis: As the blood flow slows down in the tortuous vessels, thrombosis can easily occur, also called thrombotic superficial phlebitis, which is a complication of varicose veins requiring emergency surgery. 4.Oedema: As varicose veins worsen, tangible fluid components gradually leak out of the vessels into the intertissue fluid, causing tissue edema, a condition that should also be actively treated conservatively.