16. False advertising.
“I actually thought they menstruate blue liquid just like the advertisements for pads.” –Longjumping-Bat8347
17. The tastebuds.
“When I was about 10 I noticed one of those ‘flavoured’ condom vending machines in a public toilet. I knew what condoms were for, so I obviously just assumed women could taste down there.” –turnerxyz
18. Makes sense.
“Till 8th grade I thought girls have dicks but its in lower area so they can’t use urinals and have to sit down.” –bigmonke2409
19. The Pupa Stage.
“Not anatomy but when i was very little i genuinely believed kids who were boys during their childhood grow up to be girls as an adult, and those who were girls as a child grew up to be boys as an adult. Needless to say i was very disappointed later on!” –SamiranMishra
20. This one is logical, though, right?
“My ex boyfriend (in his early-mid 20s) thought that the bigger the boobs, the more milk sloshing around inside. If you wanted to make your boobs smaller, just drain some of the milk out.” –little_tsareena
21. My fetish.
“Genuinely thought anal was the NORMAL way, and I thought Vaginal was the “Fetish” back when I was like 11-13.” –blackandwhitelibrary
22. Use your imagination.
“When I was around 10, before the porn became widespread on the internet, I couldn’t imagine how a vagina looked like. I tought it was just a hole. Like literally a simple black hole, as on an old tree.” –sheldon80
23. Censorship is wrong!
“A very looong time ago, when I was in school, I would look at biology textbooks and get angry looking at illustrations, thinking “Why are men’s private parts exposed showing their peepee, while women’s private parts are just a curve!! * I thought it was some censor, not knowing that’s how a vagina looked like* lol.” –darkxblade1
24. Is that not correct? That’s how I came out. They made an incision.
“When I was a kid I thought babies clawed their way out of the mom’s stomach like the Chestbursters from Alien.” –VisionInPlaid
25. Creative.
“I thought men were born in summer and their tits melted because of the heat and formed the penis.” –MunnaJazbaati
h/t Reddit: r/askmen