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Penis size and its relation to sexual satisfaction

Research on penis size, its measurement, and its impact on sexual satisfaction, including the findings that penis size has limited bearing on sexual satisfaction for most partners.

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Jan 22, 2026
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What are the established medical ranges for adult penis length and girth in flaccid and erect states?

Clinical literature puts the average adult erect in the low‑to‑mid 5‑inch range (about 13 cm) and erect girth around 11.6–12.2 cm (4.6–4.8 in), while flaccid length and girth cluster lower and are poo...