Cancer is the leading cause of death in dogs over age 10. Effective pain management and palliative care allow dogs with cancer to maintain quality of life even when cure is not possible.
Cancer pain represents some of the most intense welfare harm experienced by companion animals. Dogs with untreated osteosarcoma, for example, experience severe bone pain that dramatically impairs every aspect of their life. The goal of palliative care is not merely extending life but ensuring that each remaining day has positive experiences. Welfare-centered cancer care involves honest assessment of what treatments genuinely improve quality of life versus what prolongs suffering. Open conversations between owners and veterinary oncologists about realistic goals, quality of life markers, and euthanasia timing are ethically essential.