The International Olympic Committee has found itself at the center of a growing controversy after announcing the return of genetic screening for athletes competing in the female category. The policy, set to take effect for the 2028 Los Angeles Olympic Games, has drawn immediate criticism from transgender athletes, intersex athletes, scientists, and advocacy groups.
Supporters of the measure argue that it is designed to protect fairness in women's sports. Critics see something very different. Many describe the decision as a painful setback that risks excluding athletes based on complex biological traits that cannot be reduced to a single genetic marker.
The debate touches on some of the most challenging questions in modern sports. It involves fairness, inclusion, science, privacy, and the evolving understanding of sex and gender. As reactions continue to pour in, the IOC's decision has reopened a conversation that many believed had already been settled.
What the New IOC Policy Means?
IOC / IG / Under the new framework, athletes seeking eligibility for the female category will undergo a one-time screening for the SRY gene. The test can be conducted through a saliva sample, cheek swab, or blood test.
The SRY gene plays a role in sex development and is often associated with the Y chromosome. According to the IOC's policy, a positive result would make an athlete ineligible to compete in the female category.
The rule falls under the authority of the IOC's "Working Group on the Protection of the Female Category." Officials have presented the measure as part of an effort to establish consistent eligibility standards ahead of future Olympic competitions.
However, the decision effectively excludes transgender women and many athletes with differences in sex development, often referred to as DSD conditions, from participating in women's events.
For supporters, the policy provides a clear eligibility framework. For critics, it creates a system that overlooks the complexity of human biology and places certain athletes under heightened scrutiny. The announcement has generated strong reactions because it revisits an approach the IOC abandoned more than two decades ago.
In 1999, the organization moved away from broad genetic testing due to concerns about accuracy and the emotional impact on athletes affected by the process.
Athletes Describe the Decision as ‘Deeply Harmful’
Ivy / IG / Transgender cyclist Veronica Ivy, a two-time world champion, argued that the rule would ultimately harm women rather than protect them.
According to Ivy, the policy creates an environment where female athletes may face greater scrutiny regarding their bodies and identities. Critics worry that increased suspicion could affect many women, not just transgender competitors.
Transgender boxer Patricio Manuel offered a similarly emotional response. Manuel described the decision as heartbreaking and argued that sports are being used as a vehicle for broader social exclusion.
Chris Mosier, the first known transgender man to represent the United States in international competition, questioned the necessity of the policy altogether. Mosier called the decision a "solution in search of a problem," pointing to the extremely small number of transgender women who have competed at the Olympic level.
That point has become central to the criticism. Opponents argue that the policy addresses a situation that rarely occurs in elite sports while potentially affecting many athletes.
WNBA veteran Brianna Turner also joined the discussion. Turner stated that years of competing alongside transgender and intersex athletes never led to experiences that felt unfair. Instead, the veteran basketball player emphasized the importance of protecting the dignity and humanity of every competitor.
Scientists have pointed out that biological sex involves a wide range of genetic, hormonal, and developmental factors. The presence or absence of the SRY gene represents only one piece of a much larger picture.
One of the most notable critics is Andrew Sinclair, the scientist credited with discovering the SRY gene. Sinclair has publicly stated that the gene alone should not be used to determine participation in women's sports. According to the researcher, sex development is influenced by numerous biological pathways rather than one genetic factor.