When I was in elementary school my mom tried to explain puberty to me and I vastly misinterpreted the facts. For several years I believed that when girls first got their periods, they would just continually bleed for the rest of their lives until they got old and ran out of blood and then they died.
A childhood belief about periods

others believed things like this
- I used to believe that when I started menstruating, I would bleed to death from losing too much blood.— Debbie
- When I was in elementary school, I believed my heart moved across my chest throughout the day.— Allison
- when I was 6, I believed I had to go to school for the rest of my life— Cody Jarosinski
- When my mom was a child, she thought that while girls had periods, boys had hemorrhoids!Anon
- I used to believe that when i died it was like a super mario game... I had a certain number of lives.— David...waffles
- When I was in elementary school I use to think that teacher lived at school at their desks all year long.Anon