목적: External auditory canal foreign bodies (EAC-FB) are common otologic emergencies affecting all age groups. While most cases can be managed in outpatient settings, some require surgical intervention and may lead to complications. This study aimed to analyze the epidemiological characteristics and risk factors for surgical management of EAC- FB through a comprehensive 16-year single-center study. 방법:We retrospectively reviewed 411 patients who presented with EAC- FB at a tertiary hospital between November 2008 and June 2024. Clinical data including patient demographics, foreign body characteristics, removal methods, surgical intervention requirements, and complications were analyzed. Treatment outcomes were assessed based on the need for surgical intervention and the development of complications. Foreign bodies were classified into eight categories, and their relationship with patient characteristics, seasonal variation, and treatment outcomes were evaluated. 결과:Among 411 patients (mean age 27.78±22.63 years), adults comprised the largest group (48.8%). Seasonal variation showed peak incidence in summer (29.7%). Surgical intervention was required in 10.2% of cases, with significantly higher rates in preschool children (27.5%) and patients with prior hospital visits (31.6%). The most common foreign bodies were insects (27.3%) and ear-related medical supplies (25.1%), showing distinct age-dependent patterns: toys predominated in preschool children (47.1%), while insects and medical supplies were most common in adults. The overall complication rate was 1.9%, rising to 19.0% in surgical cases. 결론:EAC-FB presentations demonstrate distinct age-dependent patterns in foreign body types and treatment outcomes. The high surgical intervention rate in preschool children and previously treated patients suggests the need for careful initial assessment and age- specific management strategies. While overall complication rates are low, the higher risk in surgical cases warrants vigilant follow- up in this subset of patients.