Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15,521 men

David Veale, Sarah Miles, Sally Bramley, Gordon Muir, John Hodsoll

Research output: Contribution to journalReview articlepeer-review

132 Citations (Scopus)
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Abstract

Objectives
To systematically review and create nomograms on flaccid and erect penile size measurements.
Methods
Study key eligibility criteria: measurement of penis size by a health professional using a standard procedure; a minimum of 50 participants per sample
Exclusion criteria were samples with a congenital or acquired penile abnormality. previous surgery, complaint of small penis size or erectile dysfunction
Synthesis methods: Calculation of a weighted mean and pooled standard deviation and simulation of 20,000 observations from the normal distribution to generate nomograms of penis size.
Results
Nomograms for flaccid pendulous (n = 10,704, mean 9.16cm, sd 1.57) and stretched length (n=14,160, mean 13.24cm, sd 1.89), erect length (n = 692, mean 13.12cm, sd 1.66), flaccid circumference (n = 9,407, mean 9.31cm, sd 0.90); and erect circumference (n = 381, mean 11.66cm, sd 1.10) were constructed. Consistent and strongest significant correlation was between flaccid stretched or erect length and height, which ranged from r = 0.2 to 0.6.
Conclusions
penis size nomograms may be useful in clinical and therapeutic settings to counsel men and for academic research.
Limitations: a relatively small number of erect measurements were conducted in a clinical setting and the greatest variability between studies was with flaccid stretched length.
Original languageEnglish
Pages (from-to)978-986
Number of pages9
JournalBJU International
Volume115
Issue number6
Early online date2 Mar 2015
DOIs
Publication statusPublished - 1 Jun 2015

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