Cancer is one of the most common causes of death in companion dogs. Navigating diagnosis, treatment decisions, and end-of-life care requires careful welfare consideration at every stage.
Cancer in dogs presents owners with some of the most difficult welfare decisions in companion animal care. Treatment options — surgery, chemotherapy, radiotherapy — can extend life and maintain quality of life in some cases, but carry costs, side effects, and welfare burdens that must be weighed against likely benefit. Veterinary protocols prioritise quality of life over length of treatment response, but owners may feel pressure to pursue every available option. Understanding cancer pain recognition in dogs is critical: subtle changes in behaviour often signal pain that owners and even vets miss. Palliative care — managing pain, maintaining appetite, and supporting quality daily experience — is often the most welfare-positive approach in advanced cancer. Timely euthanasia, before suffering becomes severe, is a welfare gift rather than a failure.