ObjectiveTo investigate the diagnostic value of rhinomanometry for adenoid hypertrophy in children.MethodsSixty pediatric outpatients with snore were enrolled in this study. They all received both rhinomanometry and fiberoptic nasopharyngoscopy from July 2016 to May 2017. The data were recorded and analyzed.ResultsFiberoptic nasopharyngoscopy showed moderate obstruction of nasopharyngeal cavity in 6 patients, moderatesevere obstruction in 31, and severe obstruction in 23. The obstruction rate of moderatesevere degree and above was 90%. The rhinomanometry revealed normal result in 6 patients, mild obstruction in 23, moderate obstruction in 12, moderatesevere obstruction in 10 and severe obstruction in 9, and the obstruction rate of moderatesevere degree and above was 31.67%. The difference in detection rate of moderatesevere and above obstruction between the two methods was statistically significant (P<0.05).ConclusionIn comparison with fiberoptic nasopharyngoscopy, rhinomanometry seems to be less accurate in detecting adenoid hypertrophy in children. Fiberoptic nasopharyngoscopy is an accurate and reliable method in the diagnosis of adenoid hypertrophy in children.