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Ihab Kamel, Amr Gadalla, Hussein Ghanem, Mohamed Oraby, Comparing Penile Measurements in Normal and Erectile Dysfunction Subjects, The Journal of Sexual Medicine, Volume 6, Issue 8, August 2009, Pages 2305–2310, https://doi.org/10.1111/j.1743-6109.2009.01305.x
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ABSTRACT
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).
The aim of this work is to define the average stretched penile size in normal men and ED patients.
Penile length and girth.
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.
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.
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).
