Nasal septum deviation refers to the deviation of the cartilage and bone tissue of the nasal septum towards one or both nasal passages, causing symptoms such as nasal congestion, blood-tinged nasal discharge or nosebleeds, and headaches. After the deviation of the nasal septum, nasal congestion can cause symptoms of snoring. Surgery for nasal septum deviation or other operations can be performed under general anesthesia. The deviated nasal septum does not affect the state of anesthesia. However, due to the presence of a deviated nasal septum, oral intubation should be chosen instead of nasal intubation during general anesthesia. If nasal intubation is desired, it should be performed on the side with a wider nasal passage. Thus, attention should be paid to the choice of intubation location during surgery under general anesthesia.