Ever wonder why sticking your finger in your belly button makes you want to pee? Turns out there's a very good reason for it. If you don't know what we're talking about, you should lift up your shirt ...

Navel stones are an accumulation of sebum and keratin that can resemble a large blackhead in your belly button. A navel stone is a hard, stone-like object that forms inside your belly button (navel).

Sometime in your second or third trimester, you might notice your "inny" has become an "outey." Pressure from inside your growing abdomen pushes the navel out. It might even poke through T-shirts and ...