I had laparoscopic surgery last year and one port was in my belly button.
This is disgusting so if you are squeamish stop reading now.
That port got infected and I got a red lump about the size of a golf ball right underneath my belly button. It then ruptured during the night (very disgusting) and I had to go into hospital for draining it and IV antibiotics.
The doctors came daily and fiddled about for what seemed like ages while I tried not to levitate off the bed as that weird belly button feeling was times 100, plus the pain of the abscess etc. They packed it with some strange stringy stuff everyday for a couple of weeks, the last week at an outpatient clinic. It filled itself in.
All of this made me wonder why they use the belly button which seems to me would be more prone to infection. I now have a concave area under my belly button where the infection was. There was a dissolving stitch in there also.
One of the resident doctors was quite funny. It was early on so it was draining a lot. She finished the dressing, looked at me and said "well, that was fun!"
Move over Dr. Pimple Popper.