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Clinical penile length measurements

Methods and variations in measuring penile length in clinical settings

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2 results
Jan 19, 2026

How do measurement methods (self-report vs. clinical) affect reported average penis length in studies?

Clinical and self-reported measurements of penile length diverge in predictable ways: self-reports tend to be larger on average due to social desirability and perceptual bias, while clinician-measured...

Jan 17, 2026

How common are penile size variations across populations and what are normal reference ranges by age?

Large, peer‑reviewed syntheses and population studies show penile size varies meaningfully by region, age and study method, with erect lengths in the literature spanning roughly 9.5–16.8 cm and pooled...