Here's the most disgusting thing you'll see all day ... UFC's Travis Browne posted the result of his bone spur surgery Wednesday -- and it's NASTY.
Browne -- who's Ronda Rousey's hubby -- went under the knife this week to fix some issues with his ankle and foot ... and clearly, he needed A LOT of work done.
The UFC heavyweight posted pics of what the doctors cut out of him ... and it's a grip of little pieces of meat, fat, muscle and all-around grossness.
For his part, Browne seemed to be in good spirits after the operation .