Any method that prevents the intrusion of all microorganisms and keeps sterilized items and sterile areas from being contaminated is called aseptic technique. The main contents of surgical aseptic technology are: 1. Sterilization and disinfection of surgical instruments, items, and accessories. The main sterilization method in the operating room is sterilization with an autoclave, followed by soaking fumigation with chemical liquid and boiling Sterilization is also one of the commonly used methods. Disinfection: refers to the killing of pathogenic microorganisms and other harmful microorganisms, but it does not require the removal or killing of all microorganisms (such as spores, etc.).