i used to believe that when i put a tampon the plastic was supposed to stay on. this was around the time the "pearl girl" phase of tampons first came out, and i remember being in violent pain every time i used one. I dont know how, but i even got the stick part of the applicator in therre!
A childhood belief about periods

others believed things like this
- dont swallow gum, it will stick to your stomach , your whole life.— nancy
- When i was little i used to think that my foot was a "naughty part" that no one else was supposed to see.Anon
- I used to think that on day light savings time you had to stay up till 2:00am to change the clocks! — Sandy
- I used to think that doctors added plastic to your face in plastic surgery.— caro
- I used to think circumcision was a violent procedure performed on boys if they'd been "bad". — Tufty
- I used to think that plastic surgery actually involved using plastic.
— JohnJ