Fertility and Testosterone Injections – How to Preserve Spermatogenesis in Men (2025 Clinical Guidance)
For many men testosterone replacement therapy (TRT) represents liberation renewed energy, sharper focus, restored libido, and improved strength. In the United States alone, more than 3 million men are now using injectable testosterone formulations for clinically diagnosed hypogonadism. Yet behind these therapeutic gains hides a crucial question that often goes unaddressed: What happens to fertility?
