Cancer is the leading cause of death in older dogs, and comprehensive pain management is central to maintaining quality of life through diagnosis, treatment, and end-of-life care.
Canine cancer pain management requires a level of sophistication comparable to human oncology palliative care, but is often approached with less rigor. Cancer pain involves multiple mechanisms simultaneously — inflammatory, neuropathic, and visceral — that require different analgesic approaches. Owners managing cancer dogs at home need practical guidance on pain assessment, medication administration, and when to seek veterinary reassessment. The goal of palliative care is not to extend life at any cost, but to maximize the quality of life that remains. Dogs with cancer maintained on inadequate analgesia suffer preventably; those receiving comprehensive pain management often maintain good quality of life for months after diagnosis. End-of-life decision-making is aided by validated quality of life scales that track pain, appetite, mobility, and engagement with family.