In XX individuals with congenital adrenal hyperplasia, prenatal exposure to excess testosterone can lead to clitoral growth beyond typical size.

“And in XX individuals, u people might not notice, but in XX individuals, what that means is that prenatally her genitalia being exposed to more testosterone than is typical. And so uh under the influence of this extra testosterone the clitoris may grow to be bigger than the typical clitoris. In some cases in extreme cases um the the phalus looks like a penis and the skin around that area that would normally form the labia again there might be enough testosterone that it starts to look like a scrotum except of course there are no there are no testes inside there because this is an XX individual.”