As an artist who have drawn nude is it hard?

Can u artist tell me is it hard to draw a pussay? Like idk if they’re not allowed to draw what a realistic pussay looks like or they don’t know how to or maybe their only refrence is those PS but where the flaps at like i only remember reading this one josei where they actually had a realistic pussay and i was so shocked like omg finally one or do they not draw that cause ppl get scared of pussay flaps