There are general anesthesia, local anesthesia, and intralesional anesthesia in the operating room, and the anesthesia is operated in different ways. 1. General anesthesia: it is to give the sick person some fluids, and then insert a tracheal tube from the mouth to connect with the ventilator, and let the ventilator assist to breathe by giving medicine from the vein. 2. Local anesthesia: including nerve block anesthesia, surface anesthesia, regional block, local infiltration anesthesia, general local surgery, the most commonly used is local infiltration anesthesia, mostly lidocaine and other anesthetic drugs. 3. Intravertebral anesthesia: the most common is subarachnoid block, also known as lumbar anesthesia, which is often used for cesarean section and other operations. Note that anesthesia is risky, to explain to the doctor about their own physical condition, to avoid surgical accidents.