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The objective of this study was to investigate the incidence of gastrointestinal injuries during gynaecologic operations, the management of such injuries and associated risk factors. This case-control study (1:4) examined patients who received gynaecologic operations from 2007 to 2016 in Ramathibodi Hospital. The study cases comprised patients who had gastrointestinal injuries, while the control cases comprised patients who had gynaecologic surgeries in the same period with matching the types of procedures. The 10-year incidence was 0.38% (104 cases of gastrointestinal injuries among a total of 27,520 cases). The most common injury site was the small bowel (43.3%). There were 102 cases (98%) of gastrointestinal injuries which were diagnosed intraoperatively and which were immediately repaired with successful outcomes. Logistic regression indicated that a pelvic adhesion, previous pelvic surgery and previous abdominal surgery were predictive risk factors associated with the injuries (odds ratios: 9.45, 3.20 and 11.84, respectively). An immediate consultation with a surgeon and surgical repair of the injury resulted in excellent outcomes. Impact statement What is already known about this subject? Gastrointestinal injury is a rare, but fatal complication of gynaecologic operations. The previous small study identified some risk factors such as surgical approach and pelvic surgery associated with the injury. What do the results of this study contribute? Our study identified the associated risk factors for gastrointestinal injury, including previous abdominal injury, pelvic adhesion and previous pelvic surgery. A previous abdominal surgery was the most associated risk factor. Patients with the history of abdominal surgery had an almost 4-fold higher odds ratio than the ones with previous pelvic surgery. Other factors, including endometriosis, ovarian cancer and subsequent oncological procedures, and surgical staging were less related to the gastrointestinal injury. What are the implications of these findings for clinical practice and/or further research? The knowledge is useful for pre-operative evaluation and preparation. Bowel preparation and consultation with surgeon are necessary for patients with these risk factors prior to their surgeries. Moreover, an immediate intra-operative surgical correction of the injury results in excellent outcomes. [ABSTRACT FROM AUTHOR]