Decisions about euthanising a companion animal are among the most emotionally and ethically complex that owners face, and welfare science can help guide quality-of-life assessment for these difficult moments.
The ethics of companion animal euthanasia involves balancing the welfare of the animal against owner grief, financial considerations, and cultural attitudes toward death. Welfare science is clear that euthanasia is an act of compassion when an animal is suffering without prospect of meaningful recovery, and that prolonging life at the cost of sustained suffering is itself a welfare failure. Quality-of-life assessment tools help owners and veterinarians make more structured decisions, moving beyond purely intuitive judgements. The equally important problem of premature euthanasia — ending a life that still has quality — requires the same careful assessment. Veterinarians increasingly offer palliative care pathways that support both animal welfare and owner preparation for inevitable loss.