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J Sex Med. 2015 Jun;12(6):1402-6. doi: 10.1111/jsm.12894. Epub 2015 Apr 22.

Erect penile dimensions in a cohort of 778 Middle Eastern men: establishment of a nomogram.

Author information

1
Urology Department, Elaj Medical Group, Jedda, Saudi Arabia.
2
Urology Department, Zagazig University, Zagazig, Egypt.
3
King's College London Hospital, London, UK.
4
Division of Urology, Department of Surgery, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia.
5
Urology Department, Benha University, Benha, Egypt.
6
Sexual and Reproductive Medicine Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
7
Institute of Psychiatry, King's College Hospital, London, UK.

Abstract

INTRODUCTION:

Accurate data regarding the size of the erect penis are of great importance to several disciplines working with male patients, but little high-quality research exists on the subject, particularly in different ethnic groups and for erect penis size.

AIM:

The aim of this study was to create a nomogram of erect penile dimensions in a large sample of Middle Eastern men.

METHODS:

A retrospective cohort study of 778 men (mean age 43.7; range 20-82) attending urological outpatient clinics in Saudi Arabia was conducted. Exclusion criteria were age under 18 years, a presenting complaint of small or short penis, Peyronie's disease or complaint of congenital curvature, clinical hypogonadism, and previous penile surgery or trauma.

MAIN OUTCOME MEASURES:

Three erect penile dimensions following induction of erection using intracavernosal injection of Quadrimix.

RESULTS:

Mean patient body mass index (BMI) was 29.09 (standard deviation [SD] 5.76). The mean suprapubic skin-to-penile tip erect length was 12.53 cm (SD 1.93); the mean erect length from the symphysis pubis to the penile tip was 14.34 cm (SD 1.86); and the mean erect shaft circumference was 11.50 cm (SD 1.74). A nomogram was constructed and statistical analysis performed, demonstrating a weak negative correlation between BMI and erect penile length measured from the suprapubic skin (r = -0.283, P < 0.000) but not from bone to tip, and a weak negative correlation between age and both erect penile length measurements (skin to tip r = -0.177, P < 0.0005; bone to tip r = -0.099, P = 0.006).

CONCLUSION:

A nomogram for Middle Eastern men can be used as a standard when advising men with small penis anxiety. The importance of measuring erect size and allowing for infra-pubic fat interference in measurement is emphasized. We envisage that this tool can be used to educate and reassure concerned men about the size of their penises.

KEYWORDS:

Circumference; Erect; Girth; Length; Nomogram; Penis

PMID:
25904106
DOI:
10.1111/jsm.12894
[Indexed for MEDLINE]

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