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.

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Ryan Knutson: Like a lot of men, my colleague Rolfe Winkler and I get bombarded ...

If you’re taking finasteride — or the brand name versions Propecia or Proscar — you’re probably checking your hairline for changes. But there might be something else you’re worried about changing: ...

Axiron, an underarm gel that rolls on like deodorant, is one drug used by men struggling with symptoms of growing older associated with low testosterone such as poor sex drive, weight gain and fatigue ...

Here’s when and why experts think testosterone should be prescribed to middle-aged women, and how it affects their lives. By Susan Dominus Testosterone use has recently exploded among middle-aged ...

What used to be a niche treatment for men with legitimate medical conditions has morphed into "youth and vigor" as a ...