Managing quality of life for dogs with cancer requires balancing treatment side effects with disease control, guided by validated welfare assessment and honest prognostic conversations.
Dog cancer welfare management requires a fundamentally different approach from human oncology, where quality of life during treatment is weighted as heavily as treatment efficacy. Dogs cannot consent to treatments they find aversive and do not understand the rationale for side effects. The welfare goal is to maximize positive experiences during whatever time remains, whether through cure-seeking treatment or palliative care. Validated quality of life assessment tools including the HHHHHMM scale enable systematic evaluation that goes beyond clinical assessment. Honest prognostic discussions between veterinarians and owners are essential for enabling informed decisions that genuinely prioritize the dog's welfare rather than owner grief responses.