Androgens like testosterone are male hormones that help regulate sex characteristics in the body. Everyone has androgens, but those born with male sex traits typically have higher levels. Here’s what ...

Testosterone is the key male sex hormone. Its functions include regulating fertility, muscle mass, fat distribution, and red blood cell production. When levels of testosterone drop below levels that ...

Testosterone is the main sex hormone in men. It’s best known for its role in the development of male sexual characteristics and physical features, but there are also many surprising and lesser known ...

Anti-androgen drugs block androgen hormones, such as testosterone. People can use them for many purposes, like slowing prostate cancer and minimizing the masculinizing effects of certain hormones.

In men, marked hypogonadism due to pituitary or testicular disease generally has readily recognizable clinical manifestations, such as decreases in libido and sexual activity, loss of secondary sex ...

For more than 80 years, men have been told that testosterone helps prostate cancer grow. But a very different picture has emerged over the past two decades. The prostate is a small gland that sits ...