Many cats won't have their full appetite return until days after
they've had surgery. This is so even when the surgery was fine or didn't
affect their ability to chew food properly.
Talk to
your vet if you're concerned about your cat not eating. They'll tell you
what you can do to force feed your cat if necessary or make other
adjustments to ensure that they don't starve.
Your cat may need to have special food after surgery. Ensure for cats can supply the nutrients they need.
