T Nation

Can Lab Work Tell Why Low T Happens?

I’m curious to know if my low T is due to my testes being signaled to produce it but not producing enough, or if the signal to produce it (LH) isn’t sufficient to get the levels I need.

My labs are in this thread: http://tnation.T-Nation.com/free_online_forum/sports_training_performance_bodybuilding_trt/just_getting_evaluated_anything_to_track_to_help_my_trt_doc?pageNo=0#5405061

Can anyone tell me what to look for?