I've always wondered: what's behind the belly button?

We're constantly told what not to do with it, but what exactly is behind this mysterious orifice?

25F - Indent above belly button - new -never pregnant. Photo captions have more info : r/DiagnoseMe

Umbilical cord – News, Research and Analysis – The Conversation – page 1

My Belly Button Saved My Life

What Your Belly Button Says About You - SHEfinds

Lumps and Bumps Around Insulin Injection Sites

LadyLemonCosplay - This is the (almost) final version of my Wonder Woman cosplay. I've modified all the parts, including the corsette, now is more tight and accurate. Altough I'm not happy with

Your Stories

Olivia Samuelsson (@stumliv) / X

Why touching your belly button makes you need the toilet, The Independent

How to Take Body Measurements to Assess Body Composition

I've always wondered: what's behind the belly button?

my belly button tingled when I typed that no thanks😃😃#DoritosTriangl

Secret diary of a surrogate mother, Surrogacy

Here's Why It Feels Weird When You Poke Inside Your Belly Button