Varicose socks are a product capable of promoting the return of venous blood to the heart. It is a medical treatment device used for treating varicose veins. Differ from the ordinary sock, it establishes the highest support pressure by the force distribution on the ankle, gradually decreases upward along the leg to 70% -90% of the maximum pressure value in the calf, and decreases to the maximum in the thigh 25% -45% of the pressure value. This decreasing change in pressure can return lower limb venous blood to effectively alleviate or improve the pressure on the lower limb veins and venous valves.