Usually mention “leg binding”, people will think of the war movie after the PLA soldiers on the leg binding that the image of vigorous, competent and sharp. It turns out that there are many benefits to do so, rapid marching and long-distance trekking can prevent leg swelling and pain caused by blood under the accumulation, to reduce the soreness and tiredness of the calf. Some mountainous minorities in the south of China, due to the rugged roads, more rocks, more snakes, more thorns and thatch, people engaged in production work, the foot and calf easily bruised, in order to strengthen the protection of the calf below the knee, also have the habit of playing leg binding. Later, someone was inspired to produce better “leg bandage” medical elastic bandage and elastic socks, used to treat varicose veins in the lower limbs and leg swelling caused by various venous diseases, is the use of its ability to help the calf muscle movement, while the relative recovery of venous valve function, to promote the role of blood return to the lower limbs. The elastic bandage and elastic stocking can evenly produce certain pressure on the pressurized parts, and people use their elastic stretching function and play the role of squeezing the leg muscles in the process of activity to promote blood circulation, improve or speed up the venous reflux, reduce the blood flow stasis, thus reducing the incidence of venous hypertension and lower limb edema, and have the role of preventing and treating varicose veins and their complications. Medical elastic bandage and elastic stocking have obvious advantages compared with traditional leg binding: the force of compression is even, and it is not easy to slip off and loosen; they are easy to use and beautiful in appearance; they can be reused and people can easily accept them. They are mainly suitable for the following people: people who are engaged in standing or sitting work for a long time, such as teachers, salesmen, surgeons, etc.; people who need to travel for a long time in cars and airplanes; patients with early varicose veins in the lower limbs and after varicose vein surgery in the lower limbs; people with swollen limbs left by deep vein thrombosis in the lower limbs. It should be pointed out that the elastic bandage should be used for the first time under the guidance of medical personnel, and the elastic stocking is divided into different models, and the specifications of the socks worn by patients with different specific conditions should be consulted at the vascular surgery department of regular hospitals and selected under the guidance of doctors.