Secondary sexual characteristics in 26 y/o male w/ low testosterone - will they all improve?

i'm a 26 year old male who suffered a head injury in 1999. i've had very low/low normal testosterone levels ever since. i've had many of the symptoms of this - erectile dysfunction, fatigue, limited facial hair, etc. what i want to know is this : i was 18 when i suffered the head injury and had not finished through puberty from what i could tell (could only grow a patchy beard. no one in my family can't grow one - father, both grandfathers, etc)... this is a bit different from my other concerns, but i'm wondering - will my penis get any larger with treatment? it is around 6 inches now, but i'm wondering - if my testosterone deficiency started before i finished through puberty, that means my penis probably didn't get to "full size" right? i have had some ED problems since my head injury, probably related to the lowered testosterone.
strange question, i know. and it's not nearly as important as the other problems of hypogonadism. i'm at 6" now which is respectable, but more is better.=)

oh, btw... the "treatment" i'm referring to is androgel, which i am starting this week.

You'll have to ask your doctor about that one. Only he can give you the professional answers you seek. In my studies with the human body, there is no link between testosterone and the size of your penis. Testosterone controls sexual urges, body hair, the lowering of your voice, all that good stuff. Your penis grows like your arms do. So chances are you'll get more body hair, a lower voice, and some stronger sexual urges, maybe even some anger problems but your penis is done growing. 6" is above the average anyway.

LOOk AT IT THIS WAY

1 you鈥檝e got 2 nuts ....................that comes in really handy in gym class

2 you鈥檝e got a 6 incher .............that to

3 there鈥檚 always Viagra ..........hopefully not!