What would it be like if men could menstruate? It would  become an eviable, boast-worthy, masculine event: Men would brag about how long and how much. That is for those men who are always trying to out do women, but for those who are weaker minded than a female, they would do nothing but complain and whine, because they could not deal with the pain, that some women cope with. What does this have to do with patriarchy and androcentrism?  Military men, right-wing politicians, and religious fundamentalists would cite menstruation as proof that only men could serve in the Army (“you have to give blood to take blood”). Of course, male intellectuals would offer the most moral and logical arguments. How could a woman master any discipline that demanded a sense of time, space, mathematics, or measurement, for instance, without that in-built gift for measuring the cycles of the moon and planets-and thus for measuring anything at all? And how would women be trained to react? One can imagine traditional women agreeing to all these arguments with a stomach and smiling masochism. Reformers and Queen Bees would try to imitate men, and pretend to have monthly cycles. All feminists would explain endlessly that men, too needed to be liberated from the false idea of Martian aggressiveness just as women need to escape the bonds of menses-envy.