Access to sanitary products in poor regions of the world is actually a big problem.
http://www.bbc.com/news/magazine-26260978
As for the people making this analogous to pissing/pooping in one's pants, please go back and take a health class.
Also, the equivalent for men would be getting a stiffy. I don't believe women have any equivalent, so there's no language to discuss and celebrate the boner in public. If women had dicks it would different. but because they don't have dicks, I believe it's a sexist issue.
POWER TO THE HARD-ON!!! STOP BONER SHAMING!!!
She has definitely caused a lot of people to....
...see red.
I'm cool with this. Hope it catches on.