Medically reviewed by Michael Menna, DO A complication with belly button piercings is rejection, or when your body tries to ...
An infected belly button piercing will be swollen and may even cause a fever — here's how to care for your new piercing to avoid infection.
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.