Objectives: To describe clinical characteristics and endoscopic image of patients with subglottic hemangioma. Subjects: 25 were diagnosed hemangioma at Vietnam National Children’s Hospital from 1st June, 2018 to 30th May, 2023. Methods: Retrospective prospective cross-sectional studies. Results: median age was 2.7 months, ranged 20 days female/male ratio: 2.1/1, mean stridor breathing onset 30....