Welcome to
Excelmale.
That's a question that Dr. Saya could have explained in detail. The short answer is "yes, but not in an absolute sense." I presume you're referring to fertility and you wonder if it's worth it to administer another drug if you have no plans/interest in children at this point in your life. HCG maintains testicular vitality, it is true, but it also supports hormonal activity "upstream." It is for that reason it was prescribed.
Strictly speaking, you can set it aside if you choose to. I am 58, use it, feel nothing from it (some experience stronger libido), but feel it is, on balance worth it. There's lots of material in the Forum on HCG, it has its own folder. Read, think, consider discussing it with
Defy, and make your decision.