Nose examination CT and endoscopy have their own advantages and disadvantages, and the doctor will choose them according to the patient’s specific situation. 1. CT: Nose CT can mainly observe whether the skeletal structure of the nasal cavity is normal, whether the nasal septum is obviously deviated, whether the development of the paranasal sinuses is abnormal, and whether the bones of the nasal skull base and orbital wall are intact. If there are new tumors in the nasal cavity and sinuses, enhanced CT scanning is needed to judge the blood supply of the tumor, the size and scope of the tumor as well as the boundary with the surrounding structures, which will help to determine the benignness or malignancy of the tumor. 2. Endoscopy: Nasal endoscopy is usually used as a major screening method in clinic, and when abnormalities appear in nasal endoscopy, nasal CT should be further improved. endoscopy is simpler and more intuitive, and it can effectively observe new organisms in the nasal cavity, sinus orifices and the surface of the nasal cavity, but it is difficult to determine the condition of the nasal mass or the sinus cavity through endoscopy. It is recommended to choose the appropriate way of nose examination according to the doctor’s advice, and to communicate with the doctor in time if there is any situation.