Nasal endoscopy, or nasal endoscopy, is usually performed on an outpatient basis under local anesthesia to examine the nasal passages as well as the nasopharynx. Before the examination, local anesthesia is applied to both nasal passages with bupivacaine and ephedrine, and after the anesthesia takes effect, the examination is carried out with the help of an endoscope. When the endoscope is inserted, the internal structure of the nasal cavity is presented on an electronic display, allowing for a detailed examination of the turbinates, nasal passages, and nasal septum. Through the nasal endoscopy, you can know whether the patient’s nasal mucosa is congested or not, whether there are ulcers or not, whether the turbinate is hypertrophied or not, and you can also check the color of the turbinate and the vascular filling, and you can also check whether there is purulent secretion in each nasal passage, whether the sinus opening is draining smoothly, whether the nasal septum is deviated or not, and whether there are any neoplastic organisms in the nasopharynx, and so on. It is recommended to go to a regular hospital for nasal endoscopy under the guidance of a professional doctor, which will help to follow up further treatment.