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J Sex Med. 2009 Aug;6(8):2305-10. doi: 10.1111/j.1743-6109.2009.01305.x. Epub 2009 May 5.

Comparing penile measurements in normal and erectile dysfunction subjects.

Author information

1
Cairo University, Department of Andrology, Sexology, and STDs, Faculty of Medicine, Cairo, Egypt. kamelihab@yahoo.com

Abstract

INTRODUCTION:

With the increase in penile augmentation procedures it becomes important to assess what is the normal erect penile size in both potent men and men with erectile dysfunction (ED).

AIM:

The aim of this work is to define the average stretched penile size in normal men and ED patients.

MAIN OUTCOME MEASURES:

Penile length and girth.

METHODS:

This study included 1,027 adult men presenting to a university hospital outpatient clinic. Two groups of patients were included in this research work. Group I comprises normal adult men (949) and Group II, ED patients (78). There were no differences of race, age, height, and weight. Penile length and girth were measured using a tape measure and rigid ruler in the fully stretched states in both groups. All penile measurements were performed by the same physician.

RESULTS:

In normal men (Group I) the mean of the fully stretched length was 12.9 +/- 1.9 cm and the mean of the fully stretched girth was 8.9 +/- 0.9 cm. In ED patients (Group II), the mean of the fully stretched length was 11.2 +/- 1.5 cm and the mean of fully stretched girth was 8.8 +/- 0.8 cm. Comparing the mean of fully stretched penile lengths in both groups revealed statistical significant difference (P < 0.001) between them, whereas comparing the mean of fully stretched penile girths in both groups revealed statistical nonsignificant difference (P = 0.474) between them. There were significant positive correlations between fully stretched penile lengths and fully stretched penile girths in both groups.

CONCLUSION:

The average of fully stretched penile length in normal potent men is 12.9 cm, whereas the patients with ED tend to have significantly shorter penises (11.2 +/- 1.5 cm).

[Indexed for MEDLINE]

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