목적: After the introduction of sialoendoscopy, it has been suggested as an alternative treatment for parotid gland diseases, and its effectiveness has been reported. Since the effectiveness of sialoendoscopy has not been reported in Korea, this article aims to report the outcomes of sialoendoscopy in various parotid gland diseases. 방법:Among the cases that underwent surgery using sialoendoscopy in Inha University Hospital, 157 cases met the inclusion criteria. Medical records were reviewed, including clinical history, radiographic imaging and reports, operative reports, and clinical outcomes. Statistical analysis was performed. 결과:Between 2017 and 2024, a total of 157 sialoendoscopic surgeries were performed for the parotid stones (n=13), Stenson’s duct stenosis (n=132), sialadenitis (n=10), and severe curvature of the Stenson’s duct (n=2). During the follow-up period (mean 11 months), no complications were observed; 79 cases (50%) were free of symptoms, 27 cases (17%) felt occasional swelling but had no need for medication, 39 cases (25%) needed medication, and 12 cases (8%) underwent reoperation. Upon separate analysis of the stenosis (n=132), a history of radioiodine therapy was statistically identified as a factor influencing ‘free of symptom', whereas a history of previous salivary gland surgery was found to statistically affect the possibility of reoperation. 결론:Sialoendoscopic surgery is a secure technique applicable to numerous parotid disorders associated with Stenson's duct. Sialoendoscopy seems to be an effective therapeutic approach for disorders associated with Stenson's duct in patients who have undergone RAI treatment.