| Myth: Testosterone Always an Unfair Advantage?
Testosterone Is Not Just a Transgender Issue
Hormones, Fairness, and What We Know
Q: What does “cisgender” mean—and does it include gay and lesbian people?
Cisgender means a person whose gender identity aligns with the sex they were assigned at birth.* Sexual orientation (gay, lesbian, bisexual) is separate. Most lesbians and gay men are cisgender.
Q: Is testosterone only relevant to transgender athletes?
No. Testosterone varies naturally in all bodies. Cisgender women have a wide range of levels and may be prescribed low-dose testosterone for medical reasons such as perimenopause.
Q: How are hormones regulated in sports?
Hormones are regulated for all athletes. Testosterone above certain levels is prohibited unless an athlete receives a Therapeutic Use Exemption (TUE).
Q: What does research say about advantage?
Hormone therapy for transgender women typically includes estrogen and medications that lower testosterone. Over time, this is associated with reductions in muscle mass, strength, and endurance-related factors. Some differences may remain, and evidence is still evolving, but there is no clear scientific consensus supporting blanket claims of automatic, universal advantage.
Q: How many athletes are affected?
Very few. Participation by transgender women across Olympic, college, and high school sports is extremely small.
Q: What have recent policy changes done?
Recent NCAA changes base eligibility on sex assigned at birth.* Athletes assigned female at birth who take testosterone are no longer eligible for women’s competition and may seek to compete in men’s or open categories.
Q: What is the key inconsistency?
The NCAA’s new rules expose the inconsistency: testosterone is regulated across sports, but the bans and political focus still fall mainly on transgender women.
Q: What is the takeaway?
Testosterone is a human biology issue, not a transgender-specific one. It is already regulated, naturally variable, and only one factor among many in athletic performance. Fairness in sports is complex and should be guided by evidence, not assumptions.
*Note: Intersex individuals are born with natural variations in sex characteristics (such as chromosomes, hormones or anatomy). Because of this, assumptions about sex assigned at birth - and how it relates to gender and biology- do not fit neatly into binary categories.
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