An outie belly button is mainly a cosmetic issue and doesn't usually need treatment. Umbilical hernias are a common cause of outie belly buttons and may require surgery if symptomatic. There's no way ...

1. Why do I even have a belly button? Your belly button, or navel – clinically, your umbilicus – is the permanent scar left from where your umbilical cord connected your circulatory system, when you ...

(THE CONVERSATION) – Everyone has one, but you might not know much about it. Here biologist Sarah Leupen, who teaches human and comparative animal physiology, explains the ins and outs of belly ...