Protruding belly buttons are often called “outies.” An estimated 10 percent of the population has an outie belly button with the remainder having an “innie,” according to a chapte… See more

A deep hollow belly button will typically appear if there’s a shadow underneath the … See more

Also known as a T-type belly button, a horizontal belly button has most of the belly button fold going horizontally. A depression at the top of the belly button may look like the line tha… See more

A round belly button isn’t quite an outie belly button — but it’s close. A round belly button is still concave or protruding inward. However, it doesn’t have any hooding or covering, in… See more

A light bulb-shaped belly button has very little hooding on the top, with a slightly oval shape that narrows as it goes down — much like a light bulb. Some people also compare a … See more