TL;DR — Key Takeaways Yes, TRT suppresses your natural testosterone production. Your brain stops the LH and FSH signals that tell your testes to make testosterone and sperm. This causes low sperm output
TL;DR — Key Takeaways Yes, TRT suppresses your natural testosterone production. Your brain stops the LH and FSH signals that tell your testes to make testosterone and sperm. This causes low sperm output