关键词: 儿童消化道息肉, 临床表现, 内镜特征, 病理学, 遗传学

Abstract: Gastrointestinal polyps are a common condition in children，with abdominal pain and hematochezia being the most frequent symptoms.Due to the relatively narrow intestinal lumen in children，polyps tend to grow rapidly and can easily induce complications such as intussusception and intestinal obstruction. Particularly in children with polyposis syndromes，the number of polyps tends to increase with age，and some may even carry malignant potential in adulthood.Therefore，early diagnosis and treatment are essential upon detection，along with pathological examination， to determine the nature of the lesions.In recent years，the rapid advancement of endoscopic techniques has significantly improved the diagnosis and management of gastrointestinal polyps. This article systematically reviews the clinical characteristics of pediatric gastrointestinal polyps，aiming to enhance understanding of the disease，optimize diagnostic and therapeutic protocols，and ultimately reduce the incidence of severe complications while improving long-term prognosis in affected children.

Key words: pediatric gastrointestinal polyps, clinical manifestations, endoscopic characteristics, pathology, genetics