A childhood belief about periods

While riding home from grocery shopping in the back seat of the car, I gfot bored and pick up a box of tampons from one of the bags and read the outside of the box. I saw the word "menstruation" - figured it was something like "men's - ture - ation" and had something to do with men. I woudl be becoming one in a few years so I asked by parents what I was in for. They told me after we got home. I was relieved to find out that I wouldn't have to worry about it. But I felt so very bad for girls who would have to undergo that for every month for most of their lives.