People who have one of several well-documented medical conditions do not have only XX or XY chromosomes, which typically correspond with female and male sexes, respectively. Those conditions include ...

Add Yahoo as a preferred source to see more of our stories on Google. The International Olympic Committee has defended its decision to allow the two boxers to compete in the Paris 2024 Olympics amid a ...

The inclusion of two biologically male fighters into the Olympic female boxing category has sent shockwaves through the world of sports and sparked many questions regarding the athletes’ rare genetic ...

Gender is one of the most defining features of our identity. Most people think it is fixed. If you have two X chromosomes, you are female; if you have an X and a Y chromosome, you are male. This idea ...

Earlier this year, the often overlooked issue of differences in sex development came to the fore after two women boxers were allowed to compete in the Olympics after previously failing a gender ...