The navel is located on the front of the body, roughly half way up the abdomen. There is a great variety in navel size and shape among humans.
The navel, or bellybutton as it is typically referred to, is the result of detaching the umbilical cord. The shape of the navel will depend on how the cord is cut. Some people have a hollow depression for a bellybutton, while others have a small raised area instead. The vast majority of humans have a hollow depression. After birth, the navel no longer serves any biological purpose. Despite having different appearances, the type of naval has no effect on human health.