When it comes to body parts, the belly button doesn’t usually get much attention. Yet this often-overlooked little spot is a treasure trove of interesting details. Whether you've got an innie or an ...

Eight-year-old Alice suffered from horrible stomach pain. In my office she closed her eyes, breathed slowing into her belly, and asked inside what was the cause. Stress appeared as a large square ...

The belly button, it turns out, is one of the least-studied parts of the human body. But one of its great mysteries may now have been solved – why most people have an innie, or concave belly button.

A complication with belly button piercings is rejection, or when your body tries to remove the piercing from your skin. This is an immune response—your body sees the piercing as a foreign object and ...