Penile Morphometrics and Erectile Function in Healthy Portuguese Men

Objective: This study aimed to evaluate the relationship between penile morphometrics and erectile function in a sample of healthy Portuguese men. Methods: A sample of 1416 adult men with an average age of 39 years were surveyed and completed the following measures: socio-demographic questionnaire, penile morphometrics evaluation questionnaire, and the Portuguese version of the International Index of Erectile Function-5 (IIEF-5). Results: The average result for penis length was 16.75 cm (SD=2.25) and a circumference of 9.56 cm (SD=2.38). Levels of satisfaction with the morphometrics of the penis were relatively high (7.61 on a scale of 1 to 10, SD=1.87), as well as overall levels of erectile function (4.21 on a scale of 1 to 5; SD=0.61). Results showed a negative association between penis length and erectile function (r=-242; p<0.05), and positive association between the circumference and erectile function (r=0.183; p<0.05); penile length and circumcision was associated with less erectile function. Conclusion: This study provides evidence that penile morphometrics interferes with erectile function and this is an important source of information for professionals working in the male sexual health field.