Appendix C

Fertility Before TRT

Fertility decisions are easiest to protect before prescription testosterone suppresses the reproductive axis. This worksheet defines the reproductive goal, records the baseline, and helps decide whether a reproductive specialist belongs in the plan.

Written by David Shusterman, MD, board-certified urologist. Adapted from TRT Unlocked.

Fertility decisions are easiest to protect before testosterone from a prescription suppresses the reproductive axis. This worksheet defines the goal, records the baseline, and helps decide whether a reproductive specialist belongs in the plan. The summary lines live in the testosterone record (Appendix A).

Define the reproductive goal

Prior paternity does not prove current fertility. Uncertainty is a valid answer here.

Document baseline reproductive information

One semen sample may not represent usual production, especially when it is abnormal or was collected under unusual conditions. The clinician decides whether repeat testing is needed.

Consider sperm cryopreservation

Banking preserves an option; it does not guarantee a pregnancy or improve the stored sample. A decision to decline banking should be recorded without implying that recovery after future suppression is certain.

Understand what prescription testosterone can change

Mark each statement only when it is understood, and ask about any that is not clear before treatment begins.

Compare treatment paths by the fertility goal

This section records a clinician-guided discussion. It does not select a medicine from a worksheet.

Plan follow-up around the real endpoint

Common questions

I have already fathered children. Do I still need to think about fertility before TRT?

Yes. Prior paternity does not prove current fertility, and uncertainty is a valid answer on this worksheet. The reproductive goal, its time horizon, and the life events that might change it are recorded before treatment because prescription testosterone lowers LH, FSH, the testosterone inside the testicle, and sperm production.

Does banking sperm before TRT guarantee I can have a child later?

No. Banking preserves an option; it does not guarantee a pregnancy or improve the stored sample. Pregnancy and live birth depend on more than one hormone or one partner's semen result. A decision to decline banking should also be recorded without implying that recovery after future suppression is certain.

Diagnosis before optimization.

That is the whole book in three words. If you want the complete version, with the case examples and the checklists, it's in TRT Unlocked.

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