The operating room is off limits to the patient’s family, mainly because it is a relatively sterile environment and needs to be kept quiet during the procedure. The operating room is one of the most important medical occasions in the hospital. It can provide a clean surgical place for various large and small surgeries in various departments, and the operating room can’t let the patient’s family members enter casually. Because the operating room belongs to the sterilization of health places, in the process of surgery, medical workers need to change the surgical gowns and aseptic operation and hand disinfection in order to meet the requirements of the operation, if the family members to enter at will, there is the possibility of contamination of the surgical site, and may indirectly lead to contamination of the affected area. The operating room also needs a quiet environment, a small number of patients will be in serious condition, if the family is present, the emotion is too excited, may also hinder the normal operation.