Bacteria or improper jewelry-wearing. That is, it was either done in an unsanitary way, you haven't been properly cleaning it, or you're wearing improper jewelry or wearing proper jewelry improperly...
I have had the unpleasant "oozing belly button" few times. There are two things that have caused it for me. One is contact dermatitis as I am allergic to some metals. Zippers, snaps and buttons on...
Bacteria or improper jewelry-wearing. That is, it was either done in an unsanitary way, you haven't been properly cleaning it, or you're wearing improper jewelry or wearing proper jewelry...
Well it depends. Are you a boy or a girl? If you are a girl, it could be your period. If you are pregnant, Your belly button might pop out any second. Or you could have scratched it. Did you dig...