I caught this fish from a small lake up in Wisconsin 2 years ago. Just came across the picture. I never did figure out if it was a nasty growth or a wound gone bad. Any ideas?

i cant tell you what it is, other than disgusting.

My guess is that it is a growth or tumor. If it was a bite there would be damage to the fin as well.

Whatever it is, I'd keep it away from Mr. Johnson.

Whatever it is, I'd keep it away from Mr. Johnson.

Made me laugh. I'm just glad I wasn't eating or drinking when I read your response.

It's the drip.

The "Creeping Crud of Kalamazoo"!

gross caught a bass once that had a spot near its dorsal fin similar to that but nowhere near as big or swollen