Your Belly Button Is Home To A Diverse Community Of Bacteria

Announcement: the Curiosity Podcast is finally here! Subscribe on iTunes here, Google Play Music here and add the RSS feed to your favorite podcast player. If you love it please consider leaving us a review.

A 2012 study that collected samples from 60 belly buttons found almost 2,400 types of bacteria, with an average of 67 types per person. Most of these types were relatively rare -- that is, they were found in fewer than 10% of the belly buttons tested. In fact, not one type of bacteria was found in every belly button, but eight types are fairly common, showing up in more than 70% of the navel samples.

Share the knowledge!

Key Facts In This Video

  1. There are more than 1,400 species of bacteria capable of living in the human belly button. 01:30

  2. Belly buttons were banned on television until 1970. 02:30

  3. Some people do not have belly buttons. 05:23