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Methodological limitations in sex research

Limitations and biases in studies on penis size and female sexual satisfaction, including sampling and measurement problems

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Feb 6, 2026

What role does penis girth play in sexual satisfaction compared to length?

Contemporary studies and surveys converge on a clear but nuanced finding: girth (circumference/width) tends to be reported as equal to or more important than length for many partners’ sexual satisfact...

Jan 6, 2026

Are there differences in penis size importance across age groups in surveys?

Large surveys and reviews paint a consistent core picture: among adult respondents, self‑reported satisfaction with penis size does not show clear variation across standard adult age bands, but import...