Topical testosterone most commonly causes skin problems like itching or rash. In those with female anatomy, specifically, it can cause unwanted hair growth, acne, or birth defects in pregnant people.

A case that first appeared in a medical journal several years ago has recently resurfaced in the media, highlighting an unexpected risk of hormone therapies: a baby girl in Sweden developed unusually ...

Hall scheduled an appointment with a specialist, and in 2024 started testosterone replacement therapy (TRT)—receiving regular small doses of the hormone that’s almost synonymous with male health.

Testosterone replacement therapy, most commonly available as a transdermal gel, is increasingly used to treat men with testosterone deficiency. Although gels provide a convenient, noninvasive ...

Daniel Kelly does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Laura holds a Master's in Experimental Neuroscience and a Bachelor's in Biology from Imperial College London. Her areas of expertise include health, medicine, psychology, and neuroscience. Laura holds ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: In the U.S., testosterone is a controlled substance, so you’ll ...

DEAR DR. ROACH: I am an 84-year-old male. I recently switched from testosterone patches to AndroGel. My testosterone levels have gone up considerably, and I have seen some improvement in my erectile ...