Diagnosing Low Testosterone
Finding the Cause
If you are diagnosed with low testosterone, other tests may be needed to get at the cause. For example, your doctor may order imaging tests to see if your pituitary gland and testicles are working properly, Mezitis says. "At that point, a specialist should be involved."
Just don't be surprised if that specialist is unable to determine the reason your testosterone has dropped.
"The job of the physician is to look for causes," says Hedges, "but often there isn't any to be found and patients are kind of left with, this is the way it is and I don't know why."