男人永远不懂痛经的疼女人永远不懂蛋疼的苦
[nán rén yŏng yuăn bù dŏng tòng jīng de téng nǚ rén yŏng yuăn bù dŏng dàn téng de kŭ]
This username expresses the frustration and mutual incomprehension between genders regarding their physical discomforts. It translates to 'Men can never understand the pain of menstrual cramps, just as women can never understand the pain of testicular issues.' The statement reflects the differences in bodily experiences and how they are uniquely gendered.