Objective: To investigate the prevalence, nature, and effectiveness of menstrual suppression in transgender and gender-diverse (TGD) adolescents, and to explore whether there is an association between menstrual suppression and mental health in this population.

Methods: A cross-sectional study was performed of TGD adolescents assigned female at birth attending their first appointment at a specialist pediatric gender service between February 2017 and December 2021. Demographic and mental health data were collected using a questionnaire at the time of first visit, and information regarding menstrual suppression at this time was retrieved from the medical record.

Results: A total of 530 TGD individuals were included; 131 (24.7%) were on menstrual suppression at their initial visit, mainly to help alleviate gender dysphoria. Combined oral contraceptive pills were the most common agent used (n=61, 46.6%), followed by norethindrone (n=39, 29.8%) and intramuscular medroxyprogesterone (n=19, 14.5%). Rates of effectiveness (in stopping menstruation) and patient satisfaction were high. Among the 399 individuals not on menstrual suppression, there was strong interest in starting this treatment. No differences in the risk of gender dysphoria, depression, or anxiety were observed between those who were receiving menstrual suppression and those who were not.

Conclusion: Effectiveness of and satisfaction with menstrual suppression were high in TGD adolescents receiving this treatment. These findings support the routine exploration and management of menstrual health in TGD adolescents. However, menstrual suppression was not associated with any difference in gender dysphoria, depression, or anxiety symptoms in this cross-sectional study, and longitudinal studies are required to better investigate this.