hey guys whats up??
i have a problem now i am 21 years old not on t yet my friends in my age are tall they are 1.80 cm and more and i am only 1.70 will i can become more taller or i Stop growing up ? do u guys think i am so short i hate that i want become more tall any advices sorry for my bad english i am waiting for ur replies
thank u
peace.

When you are 21 you cant grow taller, no matter whatever you start or stop T.

you are probably alittle small, but most ftm are like that, and 170 is not an abnormal "small size" for a guy im only alittle taller and I find guys around my high or smaller.
it sure also depends on where you live and your race..

if your small size really bothers you then you can try buy some shoes who would make you alittle taller, theres been a couple of links on this site about that.

The average male height in Iran is about 1.7 m so you're just right.  It's highly unlikely that you will keeping growing with or without T. 

You're about 10cm taller than I am. Really, you're just a tiny bit shorter than the average male height.

Your an inch taller than me, almost. Your fine.

hey you're still taller than me i'm only 150cm but if you wanna look taller some one posted this a cople days ago check it out

http://www.increasingshoes.com/onlineorder.asp?Searchsize=1&shoesize=7.5