BACKGROUND: This study aims to determine whether ulnar variance (UV) types are associated with chronic or subacute ulnar-side wrist pain using 3 Tesla (T) magnetic resonance imaging (MRI), and to investigate potential relationships between UV, clinical data, and MRI-detected findings. METHODS: This retrospective study included patients who presented with ulnar-side wrist pain for at least one month and underwent 3T MRI between January 2020 and October 2023. All demographic and clinical data, wrist radiography, and MRI images were obtained from computerized records. The patients were classified as having neutral-UV, negative-UV, and positive-UV. RESULTS: In total, 272 patients were included in the analysis. Mean age was 40.57 ± 13.18 years and 63.60% ( CONCLUSION: There is a significant relationship between UV changes and ulnar impingement syndrome, ulnar impaction syndrome, and TFCC tears, which can be easily detected by MRI. The previously reported relationships between UV, sex, and other pathologies were not supported by our findings.