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Comparison of self-measured and clinician-measured penile length data, including differences in averages and variability
Published measurement studies show adult erect reaches an average of roughly 5.1–5.3 inches in early adulthood and, based on the sources available, does not show a clear, consistent decade‑by‑decade d...
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...
Large, peer‑reviewed aggregates place the average erect penis length in the low‑to‑mid 5‑inch range — roughly 5.1–5.5 inches — which means that while many men cluster around “just over 5 inches,” ther...