Educational information only — not medical advice. TRT requires a licensed prescriber and lab testing. How to start safely

Make sense of total testosterone, free testosterone, SHBG, reference ranges, and why proper timing and repeat testing matter.
TRT suppresses natural testosterone production, so stopping isn’t always simple. Learn what discontinuation and recovery can involve before deciding to start.
Low testosterone can start in the testes, the brain’s hormone signaling system, or from potentially reversible factors. Here’s why finding the cause matters.

Low testosterone can cause symptoms like reduced sex drive, fewer morning erections, erectile difficulties, low energy, loss of muscle mass, and mood changes. But many of these symptoms have other causes. Sexual symptoms—especially a persistent drop in libido and fewer spontaneous or morning erections—tend to be more suggestive of low T, though only blood testing can confirm it.
Understand what testosterone replacement therapy is, who it may help, and the questions worth asking before treatment begins.