If you have a sensitive stomach, turn back now.
Jamie Davis noticed something strange in her sister’s belly button. The odd growth appeared to have a hair in it, so she decided, in her sisterly wisdom, to pull it out with some tweezers.
What they found was something much more than your common belly button junk. In the video (which is not for the faint of heart), Davis pulls out a umbolith, which is a mass of sebum and keratin, also known as a navel blackhead.
Fans of Dr. Pimple Popper will be delighted.