My cat's fight wound is stinky and sensitive with pus. Is it infected?
Ouch, poor Cheese! Since he got into a fight, this wound looks most like a puncture wound, which is typically from the other animal's canine tooth. Bite wounds (or even bad scratches) typically get infected and can form abscesses, which are pus-filled pockets under the skin. Bite wounds are typically worse under the surface than they initially appear from the outside.
The yellowish-white piece of tissue that you mentioned looks like a piece of dead skin or fatty tissue that's protruding from the wound and is not a concern. That said, I can see a significant amount of inflammation and irritation around the puncture wound itself. If you haven't already taken Cheese to a vet, you should definitely do so. After your vet examines him, they'll be able to get a better sense of the severity of this wound. Some wounds require surgery to remove the dead tissue under the skin, but others simply require a course of antibiotics. Either way, it's better to start treatment sooner rather than later. I hope that Cheese is on the mend soon!
Updated on September 23rd, 2025