Chung HG, Goh MJ, Kim ER, et al. - Since endoscopic resection is a highly effective treatment choice for rectal neuroendocrine tumors (NETs) as they typically occur as small localized tumors, however, there are no well‐established surveillance strategies following endoscopic resection, researchers sought to evaluate the outcome and to optimize the surveillance strategies after endoscopic resection. Between January 2013 and April 2018, data of patients with endoscopically treated rectal NETs were retrospectively analyzed at Samsung Medical Center. Three hundred thirty-seven patients with a median follow‐up duration of 35.0 months (min-max: 12.0–88.3) were analyzed. In total, 329 (97.6 %) patients had tumors ≤ 1 cm in size and 8 (2.4%) patients had tumors >1 cm in diameter. Although initial screening is recommended for the detection of metastatic lesions using computed tomography, repeated imaging was not needed for small non-metastatic rectal NETs to detect extracolonic recurrence. However, routine endoscopic follow-up appears appropriate for detecting metachronous rectal NETs, particularly in the case of synchronous rectal NETs.