A growing controversy in international athletics is raising questions about fairness, privacy, and discrimination after governing bodies began requiring female athletes to undergo genetic sex verification tests to compete in elite competitions. While the issue has drawn attention in the United Kingdom due to Olympic champion Keely Hodgkinson and other athletes being affected, the policy is part of a much broader global shift in how women’s sports categories are regulated.
Under new regulations from World Athletics, female competitors in major international events must complete a one-time genetic screening designed to confirm eligibility for the women’s category. The test typically involves a cheek swab that looks for the presence of the SRY gene, a marker often associated with Y chromosomes. Athletes who do not take the test may be ruled ineligible for certain competitions.
The controversy intensified when several national federations told athletes they would need to cover the cost themselves. In the United Kingdom, athletes were reportedly asked to pay about £185 for the test if they wish to compete internationally, prompting backlash from some competitors who argue the requirement unfairly targets women.
Critics say the policy raises significant ethical and practical concerns. Male athletes are not required to undergo comparable verification procedures, and many athletes and advocates believe the policy could stigmatize women with natural biological variations or differences of sex development (DSD). Others argue it creates financial and privacy barriers for athletes who simply want to compete.
The debate is not new. Sex verification testing has a long and controversial history in global sports dating back decades. Female athletes have repeatedly been subjected to tests after suspicion about their appearance or performance. In the 1980s, Spanish hurdler María José Martínez-Patiño was disqualified after failing a chromosomal test despite having a condition that meant she had no athletic advantage.
More recently, South African middle-distance runner Caster Semenya became the center of an international legal battle after regulations forced some athletes with naturally high testosterone levels to medically lower those levels in order to compete.
Medical organizations have also weighed in on the issue. Critics argue that sex testing can misidentify athletes and unfairly penalize those with natural biological variations. The World Medical Association has previously called for the withdrawal of certain hormone-based eligibility rules, saying they discriminate against athletes with gender variations.
Supporters of testing, however, say it is necessary to maintain fairness in women’s sport. World Athletics and some policymakers argue that biological differences between male and female bodies can affect performance and that clear eligibility criteria are needed to preserve competitive balance.
The renewed focus on testing comes amid broader political and cultural debates about gender in sports worldwide. As federations finalize rules for upcoming international competitions and Olympic cycles, athletes, regulators, and human rights advocates are increasingly clashing over how to balance inclusion, fairness, and privacy.
For now, the issue remains unresolved, but one thing is clear: what began as a policy affecting a handful of athletes in one country has quickly become a global conversation about the future of women’s sports.

