As if the occasional acne breakout or cystic zit isn't enough, pimples have a way of popping up in other inconvenient places — like your butt. And if you've been plagued by butt acne , then you know just how frustrating, itchy, sore, and downright uncomfortable it can be. But because butt acne doesn't come up into everyday convo as much as pimples on your chin do, you might not actually know how to treat it. Perhaps your go-to workout leggings. According to the American Academy of Dermatology , tight clothing, in addition to damp and hot skin rubbing against skin, could cause this skin issue to pop up. The good news?