When my younger brother was around 8 or 9 years old, he was curious and read the directions inside a box of tampons. For years he believed tampons were for cleaning out your butt because of the illustration on the directions.
A childhood belief about periods

others believed things like this
- that u unrolled tampons and placed them in ur underwaer— DKuser
- I used to believe that tampons were diapers for girls because they can't control when they pee...— Tien
- My brother that is 6 years younger than me used to believe that in seven years he would be older than me.Anon
- i used to belief that tampons were rolled up pads in a tubeAnon
- My nephew (age 7) thought tampons were plugs for diarrhea. Anon
- I never knew how tampons worked, I always thought they would fit in a female flat, like a hot dog.— only me