Surgery under general anesthesia is not recommended when you have a cold. When you have a cold, the immunity of the patient is relatively poor, and due to the invasion of viruses, bacteria and other pathogens, the mucous membrane of the upper respiratory tract has an obvious inflammatory response, and the airway is relatively unobstructed, which can cause a decline in respiratory function in severe cases. At this time, if general anesthesia surgery is performed, it is likely that the respiratory depression will aggravate the respiratory distress and cause different degrees of hypoxia in the body, and even cause respiratory failure, which is unfavorable to the stability of the patient’s vital signs and may lead to death. Therefore, general anesthesia surgery can only be performed electively when the cold has completely recovered and the vital signs are stable.