Instagram has updated its guidelines to make it clear what kinds of images shouldn't be posted on the photo sharing app.
While the policies haven't changed, a clarified new document makes it easier for the more than 300 million people who use Instagram to understand what's allowed on the app.
The basics: Keep your clothes on and don't share photos that don't belong to you.
Any content showing "sexual intercourse, genitals, and close-ups of fully-nude buttocks," along with some photos of female nipples, are prohibited on the app.
Instagram notes that photos of breastfeeding and post-mastectomy scars are allowed. Users can also post paintings and sculptures of nudes.
Any content promoting terrorism or hate groups is also prohbited.
"You may find content you don't like, but doesn't violate the community guidelines," the company's website said. "If that happens, you can unfollow or block the person who posted it, and if there's something you don't like in a comment on one of your posts, you can delete that comment."
Facebook, the parent company of Instagram, re-wrote its guidelines several weeks ago, spelling out similar policies for how users of the social network are expected to behave.