A BJU International study found that the mean girth of an erect penis at mid-shaft is 11.66 cm (4.59 in.), with a standard deviation of 1.10 cm (0.43 in.). How does your girth compare?
Veale, David, Sarah Miles, Sally Bramley, Gordon Muir, and John Hodsoll. "Am I Normal? A Systematic Review and...
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