Can a XX woman go through male puberty?

Also does not have ovaries and does not ovulate or produce female gametes.

Also vanishingly rare.

So science made it possible.

It maybe possible in the future for a XY male to have a donated uterus and have a baby .

This would not make them women. It would make Science immoral.

@LaeralSilverhand thanks. I was unaware of that condition. From what you say though it would be unlikely that a person with De La Chapelle would be competing as a woman in sports, as they would observed as male at birth and be unaware they were genetically female, nor would anyone else be aware of that. They would present as male?

@Almostwelsh this is incorrect. De La Chapelle individuals are XX and undergo male puberty and have typical male phenotype including genitalia. They are generally only diagnosed when a couple are seeking a diagnosis for infertility.

Someone with Swyer syndrome does not produce oestrogen of testosterone so would not go through puberty. It is clear this boxer does not have this.

Surprisingly, there seems also to be SRY-negative 46,XX testicular difference of sex development - where someone develops testicles, despite having XX chromosomes and no SRY gene, even one that's been translocated to somewhere else - but this is a small fraction of the tiny number of people with 46,XX testicular difference of sex development (aka de la Chappelle syndrome), and it sounds as though those individuals typically have ambiguous genitalia, perhaps various disabilities, and low testosterone compared with males. I haven't understood what the variations are that let someone develop a mostly male phenotype, including testicles, without a functioning SRY gene but it seems it's to do with changes further down the pathways of what the SRY gene, if present, would have done. Here's a review.
https://www.ncbi.nlm.nih.gov/books/NBK1416/

In principle, we could ask, suppose such a person tried to enter women's sport, would that be ok? Most simplistic rules are going to say yes. I am guessing that's not actually going to be a problem in the case of this particular DSD, but could be wrong. We don't have to use a simplistic rule, however. Personally I'd be comfortable saying that there's no right to compete and so it's fine to default to no. So we might say that to compete as a woman you have to say that you are a woman AND have f on your passport AND have XX chromosomes AND have no SRY gene AND have female-typical levels of testosterone AND not take testosterone or any medication that affects your level of testosterone - plus any other condition that might be required to rule out any competitor for whom there's a reasonable (in the eyes of the public or other competitors) case that they are not female. It's a game, the rules are socially agreed. If some people who think of themselves as women are ruled out when there's a case that they shouldn't have been, that's not a terrible thing; it's no worse than someone else being ruled out because they didn't happen to have the genetic giftedness that would have made them competitive, which is just normal.

The SRY gene basically determines whether an embryo develops as male or female. If it’s present (and functioning) you get a male, if it’s absent you get a female - females are the default, males are basically mutant females 🤣 So an XY individual with no SRY ends up phenotypically female (Swyer syndrome). An XX individual with an SRY ends up phenotypically male (de La Chapelle syndrome).

As far as I understand it all DSDs are genetically male with the exception of Turners syndrome (a single functional x chromosome) who are genetically female and present as such. Women with Turners syndrome are infertile and are very unlikely to be athetically gifted, as the condition comes with medical issues and short stature.

Not all people with DSDs and xy chromosomes go through male puberty, but no-one without a y chromosome goes through male puberty unless this is artificially induced.

I get a bit uncomfortable with this. I know women of all shapes and sizes. As someone who didn’t properly develop breasts, but is a woman and has had a baby, I would hate to be judged for this. Same with my friend who is often confused for a man behind as she has no hips or waist, broad shoulders and short hair.

Thank you very much for this!

46 XX male syndrome, where the sry gene translocates onto the x chromosome passed on by the father.
They have testes so will produce some testosterone at puberty, but normally need additional testosterone as they don’t produce enough.

Someone on another thread helpfully posted this:

https://medlineplus.gov/genetics/condition/46xx-testicular-difference-of-sex-development/#causes

80% of XX males caused by translocation of SRY; 20% of unknown cause.

Looks male to me. Maybe the disorder I mentioned before which is 5ARD I think. Wrongly seen as female when born and then went through male puberty due to internal testes which gives him greater strength and power.

Thanks to both @LaeralSilverhand & @TheHomeEdit

So although not the big Y, it comes from male genes then, just a quirk of genetics where something marked genetically speaking "male" is accidentally transposed over into the wrong chromosome "box" - if that makes any sense at all?

I’m no expert, but from what I see, the waist to hip ratio doesn’t look female - female puberty includes hip widening for childbirth.

But that's because of that pesky Y though isn't it? Question, not snark.

my understanding is no Y but the sry has translocated to the fathers X chromosome (or maybe another one of his chromosomes) when the chromosomes divide to make the haploid sperm. But I could be wrong on this - I just know that sry like all genes can translocate from the Y.

No, it means the SRY gene, which is usually found on the Y chromosome is instead present on an X chromosome. So, 46,XX but phenotypically male.

De la Chapelle syndrome.

But that's because of that pesky Y though isn't it? Question, not snark.

XX plus sry gene would go through male puberty but be sterile I think.

Maybe this is a stupid question, but I can’t see how it’s obvious she hasn’t gone through female puberty?

The question is whether it’s possible for someone with xx chromosomes to go through male puberty? Can this ever happen?

There are many different forms of DSD

I think there is some chance that this boxer could have XX chromosomes. But may still not qualify as female due to what has gone on with her body and her hormone levels. It does seem pretty obvious that even if she does have XX chromosomes, she has not gone through a typical female puberty.

I think there's a very rare disorder called Swyer syndrome where they have XY chromosomes but a development problem causes the male pathway not to be followed and they end up with female genitals but no functional ovaries or testes.

A different disorder with XY chromosomes is where they are born with ambiguous genitals and may be thought to be female at birth but have no internal female parts and internal testes. At puberty the testes produce testosterone and they go through male puberty and are male.

I'm no expert though so this is my basic understanding of things

In answer to RandySavage

According to Google there are yes.

'Discussion: In world scientific literature at least fifteen successful pregnancies with pure gonadal dysgenesis XY have been described. In spite of the expectation of diminished uterine capacity, children are born to term with a normal delivery weight.'