OBJECTIVE: To compare the risk profiles, anatomical, and functional outcomes between obese and non-obese women who experienced obstetric anal sphincter injury (OASI). METHODS: A retrospective electronic database study was conducted at Cork University Maternity Hospital (CUMH). Women with missing data/repairs conducted outside CUMH were excluded. Participants were categorized into obese (BMI ≥30 kg/m RESULTS: Among the 349 women included in the study, 285 (81.7%) had a BMI <
30 kg/m CONCLUSION: Functional outcomes and manometry results did not differ, but non-obese women had higher rates of anatomical defects in OASI, requiring further study.