So if you’ve ever wondered why one of your breasts is a little bigger or perkier than the other, you’re in good company. In fact, literally everyone has some level of variation up there.

“One hundred percent of women have breast asymmetry,” Dr. Daniel Maman, board-certified plastic surgeon with 740 Park Plastic Surgery, tells BuzzFeed Health.

If you took a mirror image of one side of your face, for instance, the resulting image would probably look a little bit off. Same goes for your hands and breasts, says Maman.