How cancer pain in dogs is recognised, assessed, and managed, and why adequate pain control is a fundamental welfare obligation for dogs with cancer.
A cancer diagnosis in a dog confronts owners and veterinarians with a complex welfare challenge: managing not just the disease but the suffering it causes. Pain in dogs with cancer is often undertreated because owners may not recognise its signs — reduced activity, changed posture, altered breathing, or withdrawal — and because some veterinarians under-prescribe analgesia from concern about side effects. Yet uncontrolled cancer pain profoundly diminishes quality of life. Multimodal pain management, including palliative options such as radiation for bone pain, can substantially improve daily comfort. Equally important is having honest conversations about when the burden of disease outweighs the benefit of continued treatment, and supporting timely euthanasia to prevent prolonged suffering.