Many girls are taught early in life that menstruation is a taboo subject matter no one wants to hear about. That's one of the reasons it is such a disaster to get your first period in middle school (the average starting age is around 12), which is already a vulnerable, traumatic time for most.

That's why British nonprofit Plan U.K. and news site V Point just teamed up to create the #JustATampon campaign, which aims to end the stigma and humiliation on periods.

"[I]t’s just a tampon - there’s nothing to be embarrassed about, but just a tampon can change women’s lives," the movement's site reads. "Around the world, millions of girls face discrimination just for being girls. One way this manifests itself is through poor access to quality menstrual health and hygiene. It not only poses health issues, but means girls can miss school when they have their period and face bullying. Only 12 percent of girls and women have access to sanitary products around the world. And in Africa, one in ten girls miss school when they have their period."

As part of the campaign, V Point tested a bunch of men on their tampon knowledge:

Earlier this year, ATTN: reported on the stress many homeless females face with limited to no access to feminine care products. 

"For so many of our women, addressing those very basic needs is incredibly difficult when they are living on the street and don't have access to resources like clean bathrooms, the ability to take a shower, changes of clothes, access to feminine hygiene products," Molly Moen, COO of the Downtown Women's Center in Los Angeles, told ATTN: in March. "[T]hose are things that are tremendously difficult when you're living on the street, particularly here in downtown Los Angeles. There aren't clean, safe public bathrooms. Certainly not enough of them."

Here are some awesome #JustATampon tweets that further the belief that a woman's cycle is nothing to be ashamed of: