Bianshi is a kind of stone, which is different from ordinary stones. Bianshi is a kind of stone with special functions. Using the far infrared and ultrasonic characteristics of bian stone, it can improve blood microcirculation and enhance immunity. Bian Shi has a long history, which was first seen in Huangdi Neijing. Bian Shi's therapy is called the first of the five doctors. She is the mother of acupuncture therapy and the ancestor of scraping and acupoint selection.