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To identify the characteristics of inflammatory fibroid polyps (IFP) in the terminal ileum and to investigate the methods, safety, and efficacy of colonoscopic minimally invasive dissection and resection therapies for its treatment. Colonoscopy and colonoscopic ultrasonography were used to diagnose patients with protruding mucosal lesions in the terminal ileum, and the results suggested a high suspicion of IFPs. Colonoscopic minimally invasive dissection and resection were performed for these patients, and IFP was confirmed by postoperative pathological examination and immunohistochemical staining. Twelve cases of IFP from April 2016 to December 2020 in our hospital were examined pathologically and immunohistochemically. The IFPs in the terminal ileum were all successfully excised by colonoscopy. There were no postoperative perforation, bleeding, or recurrence cases during the follow-up. The features of the lesions, as well as the efficacy of colonoscopic minimally invasive dissection and resection, were reviewed. Terminal ileum IFPs have corresponding colonoscopic and endoscopic ultrasonographic features. For IFPs less than 2 cm in size and within 10 cm of the ileocecal valve, removal by colonoscopy was proven less invasive, safe, and effective. [ABSTRACT FROM AUTHOR]