In 1604, surgeon Shen Douyuan wrote "Qixuan of Surgery". He deeply regretted that the surgical procedures of Hua Tuo, the originator of surgery, could not be passed down to the world, so he named his book "Qixuan". It aims to explore surgical therapies and medical technologies of the past generations to benefit the people. He advocated the prevention and early treatment of surgical diseases and was unique in the development of surgery. For example, when describing the treatment of tendons, it is emphasized that "remove them with a sharp knife" and do not delay the time. For hemorrhagic tumors, he advocated "cutting them off with a sharp knife and burning them with a silver spoon to stop the bleeding and prevent recurrence", which also meant early treatment. As for the treatment of lymph node tuberculosis, they clearly oppose the indiscriminate use of needle surgery and criticize doctors who perform surgery to remove lymph node tuberculosis as "like cutting a leek" and only "taking the symptoms without treating the root cause." The sterilization of surgical instruments is crucial to the success of surgical operations. Shen and his contemporary ophthalmologist Boyunke attach great importance to this. They emphasized that the method of boiling acupuncture does not exist in "Su Wen". It is used in this world because it is beneficial but not harmful, so we should follow it. This is an important step in establishing the concept of surgical disinfection. Shen also emphasized: "In ancient times, there was a virtue of sucking pus with the mouth. Nowadays, a thin bamboo tube with a knot left on one end and the green skin peeled off is used. Boil the medicine for ten times, put it on the sore by taking the heat, and suck the pus when it is full. When the pus is gone, put a plaster on it to prevent it from being squeezed and causing a protruding pus that will not close for a long time. "This is not only an improvement on the pus suction method, but also a new development in the disinfection method.