From:
http://www.bloodyelbow.com/2012/6/10/3074385/dr-johnny-benjamin-discusses-peds-and-safety-issues-in-mma-part-2Stephie Daniels: What about a case like Chael Sonnen's, where he has stated that hypogonadism is the root of his need for a TUE?
Dr. Benjamin: Was Chael Sonnen a big time collegiate wrestler? Yes he was. I'm going to opine and say to you, there's no way in the world you get to the level of collegiate wrestling that Chael Sonnen was at, with hypogonadism. Let me explain to you why. Hypogonadism means that the testes did not produce enough testosterone for one to normally mature. He wasn't on TRT as a teenager. He became this big, muscled up monster and NCAA wrestler with hypogonadism? Hell no.
The truth of the matter is, you could never get to that level, because you're not going to have the muscle mass and strength to get you there. They're going to run you over. Your body will not allow you to develop enough muscle and strength to compete at your size.
If he has hypogonadism, it's from one thing, and one thing only, because he treated himself with steroids in the past, and wrecked his testes. That's it. 
