Frontier Sports Desk
Lausanne, Switzerland.
The International Olympic Committee (IOC) is moving toward a policy that could bar transgender women from competing in female categories across all Olympic sports, citing new research on the lasting physical effects of male puberty. While no decision is final, sources say the ban could be approved by February 2026, ahead of the Milan-Cortina Winter Olympics, and implemented before the 2028 Los Angeles Games.
The policy shift follows a review by Dr. Jane Thornton, the IOC’s medical and scientific director, who reported that individuals assigned male at birth retain advantages in muscle mass, bone density, and cardiovascular capacity—even after testosterone suppression. The findings mark a departure from the 2021 framework, which allowed transgender women to compete if their testosterone levels remained below 10 nmol/L for at least 12 months, with rules set by individual sports federations.
IOC President Kirsty Coventry, in office since July 2025, has emphasized protecting the integrity of women’s events. She has convened a working group of medical, legal, and sports experts to craft a policy that balances fairness and inclusion.
The proposed ban could also extend to athletes with differences of sex development (DSD), including those with XY chromosomes and elevated testosterone who were raised female—a group that has sparked past Olympic controversies, such as Algerian boxer Imane Khelif’s participation in Paris 2024.
Several international federations, including World Athletics and World Aquatics, already restrict athletes who experienced male puberty from competing in elite women’s events.
The IOC told reporters: “The working group is continuing discussions. No decisions have been taken yet, and further information will be provided in due course.” Transgender men, by contrast, continue to compete in men’s events without restrictions if eligibility criteria are met.
The potential ban has sparked a global debate. Advocates for women’s sports hail it as a move toward biological fairness, while LGBTQ+ groups warn of exclusion and discrimination.
Reactions on X (formerly Twitter) ranged from calls for evidence-based inclusivity to celebratory posts referencing the Latin phrase “Non plures castrati” (“no more castrati”), symbolizing a rejection of perceived unfair inclusion.
The final policy is expected to reflect ongoing consultations, balancing scientific evidence with fairness and inclusion in one of sport’s most divisive debates.