How cancer affects cat welfare, the evidence for different treatment approaches, and how owners and vets can make decisions that prioritise quality of life throughout the cancer journey.
Feline cancer management involves navigating the tension between extending life and maintaining its quality. Cats with cancer may tolerate treatment well and maintain good quality of life for extended periods, making active treatment a welfare-positive choice. But some cancers — particularly oral squamous cell carcinoma — carry such severe local effects that the welfare balance shifts rapidly toward palliative management and timely euthanasia. Cats are stoic animals that continue to present as reasonably normal even when experiencing significant pain and discomfort. Regular quality of life assessment using validated tools helps owners see beyond this stoicism to the cat's actual daily experience. The welfare-centred approach to feline oncology does not automatically favour either maximum treatment or early euthanasia, but always centres on the cat's subjective experience of each day.