Penis size

Exploring the facts, myths, and science around penis size, including how hormones, health, and body composition can play a role. Learn what the research actually says and how overall men's health factors into the conversation.

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The essentials for penis size — then explore the latest posts below.

Celebrity penises and the big penis myth: What men’s health science actually says

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

Dec 15, 2025 · 11 min read

Celebrity penis rumors rarely reflect measurable reality, and a big penis is not a reliable predictor of sexual performance or sexual health. What matters far more is erection quality, hormone balance, blood flow, and confidence. This article breaks down what size science really shows, how to measure correctly, and what to do if you are ...

How do you measure your penis correctly, according to a urologist

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

Dec 09, 2025 · 14 min read

Urologists measure penis length as “bone-pressed” length. Press a rigid ruler into the pubic bone on the top side and measure straight to the tip (glans). Measure girth by wrapping a tape measure around the mid-shaft. With this standardized method, the average erect length is about 5.1 to 5.5 inches and the average erect girth ...