Developmental uterovaginal anomalies and histologic findings in transgender patients receiving gender‐affirming hysterectomies: A large case series

Objective To describe the incidence of uterovaginal anomalies and histologic findings in transgender and nonbinary (TGNB) patients seeking hysterectomies. Methods All patients receiving gender‐affirming hysterectomies between 2013 and 2023 were retrospectively reviewed. Primary outcomes included uterovaginal anomalies and histological findings. Multivariable logistic regressions were performed to evaluate relationships between variables of interest and whether they predict findings of uterovaginal anomalies, inactive endometrium, adenomyosis, leiomyoma, endometriosis, and cervical atrophy. Results 278 patients received hysterectomies at an average age of 29.2 ± 8.3 years. Seven patients (2.5%) were found to have a developmental anomaly, including two bicornuate uterus (0.7%), two unicornuate uterus (0.7%), one septate uterus (0.4%), and two vaginal septum (0.7%). 60 patients (21.6%) were found to have inactive endometrium and 26 patients (9.4%) had cervical atrophy. Although 262 patients (94.2%) were on testosterone therapy, hormone duration was not a significant predictor of any uterine findings. Conclusion This study describes uterovaginal anomalies in a large cohort of patients receiving gender‐affirming hysterectomies. Although long‐term testosterone use is commonly believed to be associated with endometrial and cervical atrophy, this study shows no such association. Synopsis Incidence of uterovaginal anomalies in this TGNB population was 2.5% including two bicornuate, two unicornuate, and one septate uterus, and two vaginal septa.