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

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.

Add Yahoo as a preferred source to see more of our stories on Google. Rob, 42, is a fitness guy. He loves working out, spends his spare time in the jujitsu gym and eats a high-protein diet heavy on ...

Testosterone. Even the word alone sounds manly. For men, testosterone is important for drive, fertility, heart health, bone health, energy and mood — to name just a few benefits. When you have low ...

Learn how testosterone therapy works step by step, including diagnosis, treatment options, monitoring, and potential risks ...