Jan 20, 2026
average penis size for 15 yr old
The best-published cross‑sectional study specifically reporting age 15 gives an average stretched penile length (SPL) of about 11.82 cm for 15‑year‑old boys (Soydan et al.) . However, multiple large s...
Ethnicity and penile size
Average differences in penile size across ethnic or regional groups
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2 resultsJan 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...