How can I tell if it is time to euthanize my cat? - The Waggin' Train Veterinary Clinic

The reality is most of these cats are going to show you much more subtle early signs, and you're probably going to take the cat to your veterinarian to have them checked—to have lab work or x-rays—whatever it takes to diagnose what the underlying problem is. So again, with that information and the advice of your veterinarian and their staff, a group decision will typically be made in reference to what treatment options are. Euthanasia is usually the last thing that we can do to ease their suffering. So once all other treatment options have been exhausted and there is no improvement or the animal continues to decline, that's when the time for euthanasia.