“The belly button is a very important cosmetic feature of the stomach,” Darren Smith, a board-certified plastic surgeon in New York City, tells Allure. “I am seeing an increase in patient interest in belly button aesthetics.

Belly button procedures are formally dubbed “umbilicoplasty,” a broadly used term to describe any altering of your belly button, explains Smith. The procedure can repair your belly button (say, after pregnancy or a piercing) or even turn your “outtie” into an “innie.”