Just got a call from my endo, and he said I have testicular failure. I'm 30 years old, natural bodybuilder ever since I started. He prescribed Testim gel, but I haven't used it yet. He wants me to use it for a month, and then come back in for blood work. I've never used steroids in my life, so I'm not sure why my testicles would fail? Anyway, I would appreciate any advice about this stuff before I use it. I'm prone to hair loss, so is this going to make all my hair fall out? I'm very hesitant at the moment about using this gel, I hope my endo knows what he's talking about. As I posted before, the past bloodwork I had showed my LH was at 17, but my overall testosterone was around 490. So my pituitary was telling my balls to get to work, but they weren't really listening. What can I expect the first few days/week while on the gel? I'm pretty serious into bodybuilding, so will I notice a little more energy in the gym? Should I tell him I'd rather have injections? Thanks for any help!