Belly button: A navel or belly

A navel or belly button is the remnant of your former umbilical cord. They come in lots of different shapes and sizes, and is one of the unique attributes that makes you, you. Learn about belly button infections, including symptoms, causes, and treatment options, and how to prevent future infections. The navel (clinically known as the umbilicus; pl.: umbilici or umbilicuses; also known as the belly button or tummy button) is a protruding, flat, or hollowed area on the abdomen at the attachment site of the umbilical cord. Your navel, also known as your belly button, is a small, pushed-in scar area (indention) in the front of your abdomen (belly). It was the attachment point for the umbilical cord you had at birth.