Restoring fertility after prolonged anabolic steroid or testosterone use without hCG or fertility drugs may be more difficult due to potential atrophy of the testes.

“And the reason for that, I can't help but think there's because there's multiple actions of the pituitary, it's not going to atrophy in the same way. I would think and this is just speculative but for example people always want to know if I take anabolics or testosterone replacement for years but I don't take hCG or I don't take these fertility drugs will I be able to restore fertility in short order and it seems to be like a use it or lose it kind of thing where not necessarily but it's more difficult to restore fertility in somebody with like severely atrophied organs that has not had stimulation directly four years versus the pituitary does multiple different things.”