Belly buttons come in all shapes and sizes. There are innies and outies. Pregnant women often have their innie become an outie temporarily when their bellies grow. A few people don’t even have a belly ...

(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 ...

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (The Conversation) – Everyone has one, but ...