The end-of-life period is among the most welfare-significant phases for companion dogs, and decisions about euthanasia and palliative care have profound ethical dimensions.
Dogs cannot communicate their suffering verbally, making owner and veterinary assessment of quality of life critical. The temptation to extend life through aggressive treatment can sometimes reduce welfare in terminal illness. Timely euthanasia when quality of life cannot be maintained is an act of welfare, not failure. Palliative and hospice approaches allow natural death when appropriate.