목적: Nasal endoscopy is an essential diagnostic tool for allergic rhinitis (AR); however, the endoscopic findings vary from person to person. This study aimed to explore the factors influencing typical nasal endoscopic findings in patients diagnosed with AR. 방법:Data were obtained from the 2010 Korea National Health and Nutrition Examination Survey (KNHANES), which included 8,958 participants, of whom 7,145 aged 10 years and older completed a nasal endoscopic examination. The prevalence estimates of typical endoscopic findings—pale nasal mucosa (PNM), watery rhinorrhea (WR), and mucoid rhinorrhea (MR)—were calculated using a complex sampling design. Factors influencing these findings were identified using complex sample logistic regression analysis. 결과:The weighted prevalence of PNM, WR, and MR were 15.5%, 15.6%, and 7.5%, respectively. In the multivariable analysis, chronic sinusitis(OR: 4.637), septal deviation(OR: 1.653) and atopic dermatitis(OR: 2.237) were associated with PNM. Low age(OR: 0.979), chronic sinusitis(OR: 2.360), septal deviation(OR: 1.826) and sensitization to dog allergens(OR: 1.850) are related to WR. MR is associated with septal deviation(OR: 1.692) and chronic sinusitis(OR: 3.565). 결론:Patients with atopic dermatitis may present with a PNM, and if sensitized to dog allergens, WR may occur. WR is influenced by age, with a tendency to be more common in younger patients. Septal deviation is closely related to development of nasal discharge and mucosal change, contributing to the chronicization of the disease. In chronic sinusitis state, all endoscopic finidngs might be observed.