Testosterone therapy can help men with low hormone levels, but experts warn of serious risks including stroke, prostate ...

This article was reviewed by Felix Gussone, MD. What Is Testosterone? As the primary male hormone, or androgen, testosterone ...

Testosterone is the quintessential male hormone (androgen), and it’s a busy one, helping to regulate intimate function, ...

Kade was 21 years old when he started injecting testosterone. On the surface, he looked like the picture of health, but he didn't feel like it. He felt unmotivated and anxious, so anxious he couldn't ...

Testosterone gel can remain on the skin after application, creating a small but real risk for transfer through close contact ...

Methadone maintenance treatment was associated with lower free testosterone and bone mineral density among men who inject intravenous drugs.