I'm not talking about 'can it make you smaller' I'm talking about if started at early puberty would it stop a genetic male getting so tall? Is it the lack if t or presence of e?

I thought it was lack of t but then thought about kim petras who has be aa and e from 12 who is 5'5 but Jackie Green who started hrt at 12 but was only aa and didn't start e until 16 who is 6' so I am now started to think it's the presence of e.

I was under the impression that in the presence of high T/low E, growth lasts longer whereas growth stops earlier on higher E relative to T. Of course, our genes count probably for something but I'm thinking both sex hormones have also a role to play to in deciding final height. Maybe in the presence of low levels of both, growth is less inhibited???

Yea that's what I thought they'd have some impact

In the human body, there are actually virtually no secondary sexual characteristics that are not controlled by the presence of sex hormones. All you have to do is the look at someone with complete androgen insensitivity syndrome to see just how complete that control is. So yes, if started early enough, taking male to female HRT would result in your height being the same as if you had been a genetic female.

yes, estrogen and gonadotropin-releasing hormone agonist (GnRHa) given to a young male-bodied girl (roughly up to 14 YO) will result in the closure of the epiphyseal plate and thus it stops bone grown.

see

Quotehttp://www.ncbi.nlm.nih.gov/pubmed/23691819

Everything posted above makes sense to me. I mean boys = tall, girls = short. Hormones affect bone growth significantly, so I'd imagine curbing off testosterone at an early age would allow the bones to grow into a shorter, curvier, feminine frame.

I am kinda glad I was able to grow to 5'9 before starting HRT

It affects a little, but not to a great extent, I think. Due to the presence of the Y chromossome, a transgirl will get some unavoidable skeletal masculinization, and her hands and feet will be, on average, larger than that of XX women, and the same happens to height. A transgirl will turn out to be, on average, significantly shorter than the average male but still taller than the average woman. The same happens to XY women who have androgen insensitivity syndrome, their bones also masculinize to some degree. However, obviously someone who starts earlier will have better results than those who start post-puberty.

As far as I know, it's not the lack or presence of T, more the presence of E, so as far as I'm aware yes, the E stunts your growth to allow your body to start building other characteristics more appropriate for motherhood, etc.