男人的内裤有多脏？长期不换，或给「下体」带来4种伤害

参考资料：

1] Gerba CP. Application of quantitative risk assessment for formulating hygiene policy in the domestic setting. J Infect. 2001 Jul;43(1):92-8.

[2] Mínguez-Alarcón L, et al. Type of underwear worn and markers of testicular function among men attending a fertility center. Hum Reprod. 2018 Sep 1;33(9):1749-1756.

[3]Richens John, 郭利劭. 男性性传播感染的主要表现 [J] . 英国医学杂志中文版,2005,8 (2): 114-117. DOI: 10.3760/cma.j.issn.1007-9742.2005.02.122

[4]《一条内裤的「正经进化史」》.生命时报.2021-12-10

[5]吴坚,有关内裤的几个误区,《江苏卫生保健》 2020年第8期44-45,共2页