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Penile size (length and girth) in relation to somatometric parameters and hormonal profile among Egyptian normal adults

Salem, H1; Abdel Hamid, A2; Fath Elbab,, T2; Galal, E2


Introduction and Objectives: Throughout history, penis size has been a mystical topic and a common subject of debate discussions. Today, there are an increasing number of men seeing urologists daily with false beliefs about penile size. The aim of this study was to investigate the relationship between penile measurements (length and girth) and somatometric parameters (height, weight, BMI); testosterone, and prolactin level in a group of healthy, adult Egyptian men.

Methods: A group of 1001 healthy Egyptian men aged 41.5 ±19.82 years, were included in this study between July 2013 and July 2015. Men with a history of penile pathology (e.g., Peyronie's disease, penile curvature) were excluded from the study. The age, height and weight of the subjects were recorded. Penile length was measured (with the subjects standing up) in both flaccid and stretched states as described previously by Wessells et al. BMI was computed as the ratio of weight to the square of height (kg m2). The study was approved by the IRB of the faculty ethical committee and all subjects provided proper informed consent.

All measurements were performed by the same examiner to reduce inter observer error and under similar environmental conditions to avoid natural variability in size due to temporal factors such as time of day, room temperature and unreliability of measurement methods.

Results: The mean age of the subjects was 41.5 ±19.82 years.

Mean penile length in flaccid and stretched states was 10.7±3.0 cm (range 6.4-11.6) and 14.8±3.5 cm (range 10.0-13.5), respectively. There was a positive correlation between flaccid and stretched penile lengths (r=0.75, P<0.05).There was a positive correlation between flaccid penile length and penile girth, free and total testosterone (P<0.05).There was a positive correlation between erected penile length and height (P<0.05).

Penile girth correlated with penile length, free testosterone, total testosterone, and prolactin (P<0.05).

Neither penile length (flaccid and erected) nor penile girth correlated with the age of the patient.

Conclusions: These results demonstrate that somatometric parameters are correlated with penile length


Work supported by industry: no.

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