[fiffled]

All the evidence revealed so far indicates that Khelif is male. Regardless of the IBA's other issues, there are two blood tests from independent labs showing XY karyotype, and a member of Khelif's coaching team described problems with chromosomes and hormones such that Khelif has been on medication to adjust testosterone levels to bring this closer to the female range.

This implies that Khelif went through male puberty and has the male physical advantage in sport that is caused by male sexual development. Most likely, Khelif was assigned female at birth due to having a difference of sex development (DSD) conferring an external genital appearance that at first glance may seem female.

I don't know where this oft-repeated idea that Khelif has Swyer syndrome came from, but it's nonsensical. Swyer comes with bone defects due to hormone deficiency, and suffering from osteopenia and osteoporesis is not compatible with an elite athletic career, particularly not boxing. Anyone with Swyer would be getting fractures from all the punching and being punched. Nothing about Khelif's situation aligns with this.

However, there was previously in the Olympics a very similar situation with Caster Semenya, a male runner whose penis didn't develop properly due to having the DSD 5-ARD, and was therefore erroneously assumed to be female, and given identity documents to match. Semenya was eventually disqualified from track events due to having internal testes that produce male levels of testosterone and have done since puberty. Probably Khelif has the same or similar condition.