Reply to thread

The reason is because TRT has caused your HPTA to pretty much suppress all gonadotropin production, which would include LH (signalling testosteron) and FSH (signalling sertoli cells for spermatogensis).

As noted above, in many case you will see HCG help with this, as it mimics the LH signal. If you want to go "All-In" with getting sperm production to a level pre-TRT, take a look at combining HMG, which has both analogs (FSH & LH). Obviously consult with a good physician on this before proceeding ...