In the early Sui Dynasty, under the background of "monopolized medicine by clans" and "fusion of medicine between the north and the south," they grew from bell doctors (folk doctors who rang bells to practice medicine) on the streets to Fengyu, a Shang Yao Bureau in charge of palace medicine. In the process of breaking down family barriers and integrating the medical system, they understood that "physicians not only treat diseases and save people, but also have the mission of crossing classes and inheriting medical ethics." They completed their growth and transformation from "charlatans" to "a generation of medical officials".
