Testosterone testing

Learn how and when to test your testosterone levels, which panels to request, and how to interpret your results. Understanding your hormonal baseline is the first step toward optimizing your health and performance.

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The essentials for testosterone testing — then explore the latest posts below.

Does creatine cause erectile dysfunction? What the evidence says for men

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Jan 01, 2026 · 10 min read

No, creatine does not cause erectile dysfunction in men based on the current clinical evidence. The more important story is why the rumor started, what actually drives ED, and how to use creatine safely while protecting sexual performance. “When men ask me, ‘does creatine cause erectile dysfunction,’ my answer is no. In the medical literature ...

7 low testosterone symptoms: Get small daily joys back!

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Oct 23, 2025 · 15 min read

Common low testosterone symptoms in men include low libido, fewer morning erections, fatigue, low mood, reduced muscle and strength, increased belly fat, and infertility, but diagnosis requires symptoms plus two low early-morning blood tests. The American Urological Association (AUA) and European Association of Urology (EAU) recommend diagnosing testosterone deficiency only when persistent symptoms line up ...