General anesthesia using general anesthetics can inhibit the central nervous system, causing temporary loss of consciousness, and the current use of general anesthesia drugs have a rapid onset of action, can make the patient quickly lose consciousness. General anesthesia is also known as general anesthesia, the use of inhalational as well as intravenous general anesthetics, with reversible inhibition of the central nervous system function, causing temporary loss of consciousness, sensation and reflexes, so that skeletal muscle relaxation, so that the body can tolerate surgery. Most of the general anesthetics γ-aminobutyric acid can bind with the γ-aminobutyric acid (GABA) receptors of the central nervous system, inhibit the excitability of the central nervous system, and produce the effect of general anesthesia. The current commonly used general anesthetics such as inhalation of sevoflurane, intravenous use of propofol and other rapid onset of action, more than one minute to make the loss of consciousness, in the patient’s view, there will be a “momentary loss of consciousness” feeling. General anesthesia has local anesthesia, general anesthesia, lumbar anesthesia and other ways, surgery needs to be based on the patient’s condition and the need for surgery to choose the appropriate type of anesthesia.