When was the last time you cleaned your belly button? If you don't remember, chances are you're not alone.
If you aren't cleaning out that tiny crevice on a regular basis, you may want to reconsider. In the video above, Dr. Travis Stork of The Doctors explains the average belly button is home to more than 60 different types of bacteria in addition to lotions, dirt, sweat and soap.
Belly button dirt can actually build up so much, people have mistaken it for skin cancer, dermatologist Alexandria V. Booth explained to Women's Health.
In the slideshow below, we reveal 10 fascinating facts about your belly button, from how it's formed to the infections you can get and most importantly, how to keep it squeaky clean.