system
A chat on subreddit /r/me_irl
human
Some people with Klinefelter syndrome have a vagina and small undescended testicles that are sometimes mistaken for ovaries before official diagnosis.
gpt
The sex of the male's genitalia is usually determined by a gene called SRY that's located in the Y chromosome (we even look for it in the foetal DNA or mother's blood to determine the sex of the foetus early in on during the pregnancy) , and most of people with klinefelter have it (since they have a Y chromosome) . Ambiguous genitalia isn't a sign that's "normally" related to klinefelter syndrom although maybe it is the case for some of them but it just isn't the norm I guess.