Compared with placebo, men who were on a testosterone gel actually had a significantly higher risk for fracture (HR 1.43, 95% CI 1.04-1.97), found Peter Snyder, MD, of the University of Pennsylvania ...

Hormone replacement therapy (HRT) alters hormone levels, which can manage menopause symptoms. Doctors also use it to manage hormone imbalances and as part of gender affirming care. Hormone therapy has ...

While the sex hormone testosterone tends to be most associated in people’s minds with the development of male characteristics and a healthy desire for sex in both men and women, it plays other roles ...

Genetics play a role in low testosterone for some men, but underlying causes vary widely. Many genes influence testosterone ...

Medically reviewed by Danielle Weiss, MD PCOS is the most common cause of high testosterone in women, affecting about 10% ...

Hormones are the body’s chemical messengers. They act on various tissues and organs in the body to change their behavior. For example, the hormone prolactin stimulates the production of breastmilk.