I'm 25 now, but this has been something that has concerned me since I was about 13.

At 13, I noticed that I had very little body hair (none developing on my face) and wasn't gaining as much muscle mass as my friends. I saw a doctor about it, and he checked a couple physical things (including my testicles) and said I seemed fine.

In the last 12 years, I still haven’t seen an extreme amount of male secondary sex developments. I still have almost no facial hair (a small amount grows on my chin, but is quite sparse), I have almost no arm hair, little muscle mass, no chest hair, low muscle mass, and lots of body fat in the area of my butt and thighs.

I would assume that this was related to a variance in genetics if I didn't have two brothers and a father who were all very hairy, well muscled, and generally more masculine looking.

I was still very concerned that something was wrong with me hormonally, so I saw a Physician's Assistant a week ago. He drew some blood to see my testosterone levels, but only at my insistence (he seemed like he doubted anything was wrong).

I got the results a few days ago over the phone from one of the nurses. Like the PA, she seemed dismissive of my concerns, citing that my test level was 602, which she said was a normal range.

I talked to a physician at my job the other day in the mall, and, after getting into a discussion about my concern, he was surprised that my testosterone levels were so low. I looked it up later and confirmed that a 25 year old male should have higher levels. He asked me if I had any childhood head trauma, and I mentioned that I had fallen off a second story terrace when I was three and landed on a car, which of course was a severe head injury.

He said it was probably a pituitary injury and I should see a endocrinologist.

Is that possibly the reason that I look so androgynous?