Katrina Karkazis
karkazis.bsky.social
Katrina Karkazis
@karkazis.bsky.social
Professor at Amherst College. Author of Testosterone: An Unauthorized Biography and Fixing Sex: Intersex, Medical Authority, and Lived Experience.
Pinned
World Athletics’ SRY DNA test mandate—tests due 1 Sep—breaches genetic-testing safeguards in many jurisdictions by forcing non-medical testing, tying eligibility to genes, coercing consent, and handing DNA to private bodies—inviting national challenges. Analysis: verfassungsblog.de/genetic-sex-...
Sex Testing on Trial
verfassungsblog.de
Reposted by Katrina Karkazis
„Eingriffe unter dem Deckmantel der Fairness“: Der Leichtathletik-Weltverband verpflichtet alle Frauen, ihr biologisches Geschlecht überprüfen zu lassen. Die Bioethikerin @karkazis.bsky.social
hält dies für Ausgrenzung – und benennt Wege für den Umgang mit intersexuellen Athletinnen.
Sind Gentests in der Leichtathletik ethisch vertretbar?
Der Leichtathletik-Weltverband verpflichtet alle Frauen, ihr biologisches Geschlecht überprüfen zu lassen. Die Bioethikerin Katrina Karkazis hält dies für Ausgrenzung – und benennt Wege für den Umgang...
www.faz.net
August 12, 2025 at 7:23 PM
Reposted by Katrina Karkazis
Genetic sex testing in sport violates MANY laws - bioethics, genetic non-discrimination, data privacy, etc. - in MANY jurisdictions. These tests have no medical purpose, functioning instead as a discriminatory contractual condition, thus vitiating consent and misusing protected data. Read more:
Sex Testing on Trial
verfassungsblog.de
August 7, 2025 at 2:41 PM
Reposted by Katrina Karkazis
World Athletics and World Boxing have instituted genetic sex testing as a precondition for competing in the women’s category.

SONE ERIKAINEN, KATRINA KARKAZIS (@karkazis.bsky.social‬) & MICHELE KRECH (@michelekrech.bsky.social‬) on the many legal pitfalls.

verfassungsblog.de/genetic-sex-...
August 7, 2025 at 1:52 PM
World Athletics’ SRY DNA test mandate—tests due 1 Sep—breaches genetic-testing safeguards in many jurisdictions by forcing non-medical testing, tying eligibility to genes, coercing consent, and handing DNA to private bodies—inviting national challenges. Analysis: verfassungsblog.de/genetic-sex-...
Sex Testing on Trial
verfassungsblog.de
August 7, 2025 at 10:31 AM
We are back to 1967 when the IAAF first used cheek swabs for "sex determination." They later rejected swabs for being unscientific --chromosomes alone do not indicate sex--and an invasion of privacy. Now they've decided to revive this horrible practice and relive the worst parts of its history.
World Athletics says it has approved the introduction of a cheek swab test to determine if an athlete is biologically female.
#AFPSports
u.afp.com/SwKc
March 25, 2025 at 7:51 PM
Reposted by Katrina Karkazis
Last was "Testosterone: An Unauthorized Biography" by Rebecca Jordan-Young & @karkazis.bsky.social. This book does double duty - accounting for the biological effects of t and the heavily biased research and discussion in the area. Highly recommend

Full review: bookwyrm.social/user/bwaber/... (4/4)
Testosterone — Harvard University Press
An Independent Publisher Book Awards Gold Medal WinnerA Progressive Book of the YearA TechCrunch Favorite Read of the Year“Deeply researched and thoughtful.”—Nature“An extended exercise in myth bustin...
www.hup.harvard.edu
March 23, 2025 at 2:20 AM
This Thursday! Impt panel on the international regulation of women in sports

www.cambridge.org/core/journal...
AJIL Webinar: The International Regulation of Women in Sports
February 19, 2025
www.cambridge.org
February 12, 2025 at 5:58 AM
World Athletics said Mon. it plans to go back to mandatory sex testing for ALL women, ban all trans women and DSD athletes, and return to requiring cheek swabs, a version of chromosome testing discontinued in the 1990s for being unscientific, harmful & invasive. www.reuters.com/sports/athle...

1/
World Athletics planning amendments to female eligibility guidelines
World Athletics has begun a consultation period for an updated set of regulations for transgender and difference of sex development (DSD) athletes, with a cheek swab test among a number of proposals being considered, the governing body said on Monday.
www.reuters.com
February 11, 2025 at 4:38 AM