Checking the nose needs to be based on the condition to take the appropriate examination instruments and examination means, commonly used instruments and means are: i. rhinoscopy, anterior rhinoscopy is one of the most commonly used examination means in outpatient clinics. Second, nasal endoscopy, nasal endoscopy is through the sinusoscope inserted into the patient’s nasal cavity, the sinusoscope is connected to an imaging workstation at the back, which can transmit the situation in the nasal cavity to the imaging workstation in real time, displayed in the imaging workstation, the patient can see the situation of their nasal cavity, while the image of the nasal cavity is printed out through color photos, sinusoscopy can observe the nasal tract as well as the nasopharynx, and can perform surgery to take CT or magnetic resonance examination is usually the most commonly used, and CT examination has a very intuitive diagnostic value for the diagnosis of sinusitis, nasal tumors and sinus cysts.