Such thing as too much "TMI" on here?

Samantha
Random question... I'm seeing lots of vagina/cervix/nipple photos on here lately... Is that ok on this app? Or do those posts get removed? Are there guidelines on what is actually too "TMI"? 
Nervous/confused bc I know there are lots of younger girls on here and I don't want to accidentally stumble across a 17-year-old's cooch on my phone...
(You will never see a pic of my naughty bits on here so don't worry about that - just wondering)