Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Gastroenterol. Jun 28, 2026; 32(24): 118775
Published online Jun 28, 2026. doi: 10.3748/wjg.118775
Published online Jun 28, 2026. doi: 10.3748/wjg.118775
Immediate post-polypectomy bleeding is associated with an increased risk of delayed post-polypectomy bleeding: A large retrospective cohort study
Jin Ho Hwang, Hye Kyung Hyun, Cheal Wung Huh, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin 16995, Gyeonggi-do, South Korea
So Hyeon Gwon, Nak-Hoon Son, Department of Statistics, Keimyung University, Daegu 42601, South Korea
Co-first authors: Jin Ho Hwang and Hye Kyung Hyun.
Co-corresponding authors: Nak-Hoon Son and Cheal Wung Huh.
Author contributions: Hwang JH, Hyun HK, and Huh CW designed the study, wrote and revised the manuscript; Hwang JH, Hyun HK, Son NH, Gwon SH, and Huh CW participated in the formal analysis and investigation; all authors have read and approved the final manuscript.
Institutional review board statement: The study was approved by the Institutional Review Board of Yongin Severance Hospital (approval No. 9-2025-0210; date of registration: December 23, 2025).
Informed consent statement: Owing to the retrospective study design, the requirement for informed consent was waived.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
STROBE statement: The authors have read the STROBE Statement—a checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-a checklist of items.
Data sharing statement: The corresponding author will share the data underlying this article at a reasonable request.
Corresponding author: Cheal Wung Huh, MD, PhD, Associate Professor, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, 363, Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Yongin 16995, Gyeonggi-do, South Korea.
Received: January 12, 2026
Revised: February 3, 2026
Accepted: March 3, 2026
Published online: June 28, 2026
Processing time: 153 Days and 7.2 Hours
Revised: February 3, 2026
Accepted: March 3, 2026
Published online: June 28, 2026
Processing time: 153 Days and 7.2 Hours
Core Tip
Core Tip: Post-polypectomy bleeding is one of the most common adverse effects in colonoscopic polypectomies. In our study, we found that patients with immediate post-polypectomy bleeding have a higher risk of developing delayed post-polypectomy bleeding. Procedures performed by trainees were associated with a higher risk of delayed post-polypectomy bleeding, highlighting the need for careful preventive strategies, particularly in procedures performed by trainees.