Objectives: The purpose of this study is to confirm whether there is a correlation between adenoid hypertrophy and the incidence of otitis media with effusion in children that are of school age or younger. Additionally, this study aims to clarify which age groups are at greater risk in having high grade adenoid hypertrophy associated with otitis media with effusion, and which are the most common presenting symptoms among those patients. Methods: Sixty- five patients aged 2-12 years old were included, and were placed into three groups according to age (2-5, 6-9, and 10-12). All of the patients were diagnosed with OME and were treated surgically (myringotomy with ventilation tube insertion and an adenoidectomy). Each patient had undergone pre-operative diagnostic procedures, including a detailed hetero-anamnesis and a clinical examination (otoscopy, rhinoscopy, and oropharyngoscopy). The diagnostic exams undertook include flexible nasofiberendoscopy of the nasopharynx and audiologic evaluations, including tympanometry and tonal audiometry. Results: There was an observed statistically significant incidence of patients with grades II and III grades of AH (P, Ciljevi: Cilj rada je ispitati povezanost veličine adenoidnih vegetacija i kronične upale srednjeg uha s izljevom, potom ispitati u kojoj dobnoj skupini djece s ovom bolesti je najveća prosječna veličina adenoidnih vegetacija te koji su najčešći prezentirajući simptomi od povećanih adenoidnih vegetacija. Metode: U istraživanje je uključeno šezdeset petero djece između 2 i 12 godina koja su podijeljena u 3 dobne skupine (2-5, 6-9 i 10-12 godina) s dijagnozom kronične upale srednjeg uha s izljevom, koja su podvrgnuta operativnom zahvatu postavljanja aerizacijskih cjevčica i adenoidektomiji. Svoj djeci je urađena preoperativna dijagnostika koja uključuje detaljnu heteroanamnezu, klinički pregled koji uključuje otoskopiju, rinoskopiju, orofaringoskopiju te dijagnostičke pretrage koje uključuju fiberendoskopiju epifarinksa i audiološku obradu– timpanometriju i tonalnu audimetriju. Rezultati: Rezultati rada pokazuju da su najčešći gradusi AH II i III (P