It's just freakin' hilarious how they can show blood oozing, gushing, or splattering from wounds and injuries or even diseased non-sexual body parts on TV, but show a tiny spot of red liquid in a pad or tampon commercial and people are, "Eww gross I'm gonna puke!"
In the movie Carrie the title character has her first period at school and gets bullied by the other girls, and then gets abused by her insane religious mother who thought having your period was a sin. They were all female too, so yeah that makes perfect sense.
The first time the word "vagina" was ever said in a film was, of all things, in an educational Disney cartoon! They even showed the female reproduction system! A lot people must have thought back then their children would be sent straight to hell f they saw something like that!
When I was in my early teens, I believed, like most girls did in the 80's, that you must never ever tell a boy or a man about your period, or even that something called your period existed. I even felt nervous talking about it to any other woman than my own mother. Like it was something to be horribly ashamed of and not just something to keep private.
I hear all the time how society brainwashed women into hating their bodies so they end up with eating disorders and starving themselves and getting dangerous cosmetic surgery, but rarely ever do we ever hear a discussion about how we're taught to believe that our periods are creepy, gross, dirty, and how it turns us into raging snarling she-beasts every month.