erect mid-shaft girth

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...