“However, when someone wears a butt plug for long periods of time, the sphincter can get inflamed around the plug, making removal very difficult, if not impossible,” he says. “This is to help keep the butt plug from slipping out.” “Nearly all butt plugs are designed with a “neck” - a piece between the shaft and the base - that’s noticeably thinner in diameter,” says Goldstein. There are potential side effects and risks to considerĭon’t let the shape fool you, keeping a butt plug in could set you up for some painful side effects and lasting complications.