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Clinical measurement limitations

The limitations of clinical measurement methods, including heterogeneity by study and region, and variability in measurement protocols.

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Jan 18, 2026
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What do penis-size nomograms show about percentiles and clinical thresholds for concern?

Penis-size nomograms are population charts built from pooled, clinically measured data that map length and girth to percentiles so individuals or clinicians can see where a measurement falls in the di...

Jan 31, 2026
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What percentile is a 16 cm erect penis circumference in clinician‑measured datasets?

Clinician‑measured meta‑analyses that used standardized staff measurements report an average erect penile circumference near (SD ≈ 1.10 cm), which makes a 16.0 cm erect circumference an extreme outlie...