Urology Section, Department of Surgery, University of Catania, Catania, Italy.
Centro Integrato di Sessuologia Il Ponte, Florence, Italy.
Andrologia. 2021 Jul;53(6):e14053. doi: 10.1111/and.14053. Epub 2021 Mar 21.
The aim of the present study was to evaluate the size of the penis in flaccidity and in erection of Italian men. A total of 4,685 men living in Italy and who have been visited at the Italian urology operating units were involved in the study between January 2019 and January 2020. Each patient was given details on how to measure their penis (erect length and circumference) in flaccidity and in erection, from the lower base to the distal penile tip. Mean (standard deviation [SD]) flaccid penis length was 9.47 (2.69), mean (SD) flaccid penis circumference was 9.59 (3.08), mean (SD) erect penis length was 16.78 (2.55) and mean (SD) erect penis circumference was 12.03 (3.82). At the linear regression analysis, height was associated with flaccid penis length (β = 0.04; p-value = .01), and erect penis length was (β = 0.05; p-value < .01) and erect penis circumference was (β = 0.06; p-value < .01). Height is proportional to the length of the penis in flaccidity and in erection, and to the circumference in erection. The increase in BMI leads to a reduction in the length of the erect penis, as well as weight gain reduces the length of the flaccid penis.
本研究旨在评估意大利男性阴茎在松弛和勃起状态下的大小。2019 年 1 月至 2020 年 1 月期间，共有 4685 名居住在意大利并在意大利泌尿科手术单位就诊的男性参与了这项研究。每位患者都详细了解了如何测量阴茎（松弛长度和周长）在松弛和勃起状态下的情况，从阴茎下部基底到远端阴茎尖端。松弛状态下阴茎的平均（标准差 [SD]）长度为 9.47（2.69），松弛状态下阴茎的平均（SD）周长为 9.59（3.08），勃起状态下阴茎的平均（SD）长度为 16.78（2.55），勃起状态下阴茎的平均（SD）周长为 12.03（3.82）。在线性回归分析中，身高与松弛状态下的阴茎长度相关（β=0.04；p 值=0.01），与勃起状态下的阴茎长度相关（β=0.05；p 值<0.01），与勃起状态下的阴茎周长相关（β=0.06；p 值<0.01）。身高与松弛和勃起状态下的阴茎长度成正比，与勃起状态下的阴茎周长成正比。BMI 的增加会导致勃起状态下的阴茎长度缩短，体重增加会导致松弛状态下的阴茎长度缩短。
