Wang Cuntong, WangDing Yihe
School of Social Development, Central University of Finance and Economics, Beijing, China.
School of International Tourism and Management, City University of Macau, Taipa, Macau.
Andrology. 2025 May;13(4):681-693. doi: 10.1111/andr.13727. Epub 2024 Aug 1.
Penile size is a topic of significant interest among men and healthcare professionals. However, data on adult male penile dimensions in China are scarce, hindering clinical counseling and research. This study aimed to establish normative data for Chinese penile size and compare it with a global reference population.
We conducted a meta-analysis of published studies on penile size, focusing on Chinese and international data. Studies from East and Southeast Asia were excluded to minimize regional confounding factors. The analysis included 23 Chinese studies encompassing 34,060 men aged 16-57 years, and 19 international studies encompassing 15,216 men aged 16-91 years. Penile length and circumference were assessed in both flaccid and erect states.
This study established the first nomogram and percentile distribution chart for adult male penile size in China. The mean flaccid length was 7.42 cm (standard deviation [SD] ± 0.95 cm), and the mean flaccid circumference was 8.54 cm (SD ± 0.62 cm). The mean erect length was 12.42 cm (SD ± 1.63 cm), and the mean erect circumference was 10.75 cm (SD ± 1.34 cm). Compared with the global reference population (flaccid length: 9.09 cm ± 1.51 cm, flaccid circumference: 9.12 cm ± 0.93 cm; p < 0.05 for both), Chinese men exhibited statistically significant shorter flaccid lengths and circumferences. No significant differences were observed in erect length or circumference between Chinese men and the global reference population (p > 0.05 for both). Notably, the growth coefficient during erection (defined as the percentage increase from flaccid length to erect length) was significantly higher in Chinese men (67.39%) compared with the global average (43.45%; p < 0.05), supporting the hypothesis of a proportionally greater increase in shorter penises.
This study provides novel and comprehensive data on penile size in Chinese men. Compared with a global reference population, Chinese men exhibited shorter flaccid penises but a higher proportional increase upon erection. These findings may be of value for clinical counseling and future research on penile size variations. The newly developed nomogram and percentile chart can serve as a valuable tool for both patients and healthcare professionals.
阴茎大小是男性和医疗保健专业人员极为关注的话题。然而，中国成年男性阴茎尺寸的数据匮乏，这阻碍了临床咨询和研究。本研究旨在建立中国阴茎大小的规范数据，并与全球参考人群进行比较。
我们对已发表的关于阴茎大小的研究进行了荟萃分析，重点关注中国和国际数据。排除了东亚和东南亚的研究，以尽量减少区域混杂因素。该分析纳入了23项中国研究，涵盖34060名年龄在16至57岁之间的男性，以及19项国际研究，涵盖15216名年龄在16至91岁之间的男性。在疲软和勃起状态下均评估了阴茎长度和周长。
本研究建立了中国成年男性阴茎大小的首个列线图和百分位数分布图。疲软状态下的平均长度为7.42厘米（标准差[SD]±0.95厘米），疲软状态下的平均周长为8.54厘米（SD±0.62厘米）。勃起状态下的平均长度为12.42厘米（SD±1.63厘米），勃起状态下的平均周长为10.75厘米（SD±1.34厘米）。与全球参考人群相比（疲软长度：9.09厘米±1.51厘米，疲软周长：9.12厘米±0.93厘米；两者p均<0.05），中国男性的疲软长度和周长在统计学上显著较短。中国男性与全球参考人群在勃起长度或周长方面未观察到显著差异（两者p均>0.05）。值得注意的是，中国男性勃起时的生长系数（定义为从疲软长度到勃起长度的百分比增加）显著高于全球平均水平（43.45%；p<0.05），这支持了较短阴茎成比例增加更大的假设。
本研究提供了关于中国男性阴茎大小的新颖且全面的数据。与全球参考人群相比，中国男性的疲软阴茎较短，但勃起时的比例增加较高。这些发现可能对阴茎大小变异的临床咨询和未来研究具有价值。新开发的列线图和百分位数图表可为患者和医疗保健专业人员提供有价值的工具。
