The Last Good Year

There is a particular kind of grief that dog owners know before the death itself: the long, slow watching. The dog that used to sprint to the door now takes three attempts to rise. The one who demanded a walk at dawn now hesitates at the top of the stairs. You begin, without deciding to, to count the good days and the bad ones. You begin to ask the question that, once asked, does not go away: how will I know?

Advances in veterinary medicine have made this question both more urgent and more complex. Dogs are living longer. The American Veterinary Medical Association notes that improved nutrition, preventive care, vaccination, and surgical technique have extended the average canine lifespan measurably over the past thirty years. Oncology, nephrology, cardiology, neurology — these are now recognised veterinary specialities with their own board certification pathways, their own drug pipelines, their own clinical trials. A dog diagnosed with lymphoma in 2026 has treatment options that simply did not exist for dogs in 1996. This is, by almost every measure, good. It is also, when the treatment is hard and the dog is old, a moral problem.

The Quality-of-Life Problem

Veterinary medicine has developed a formal apparatus for thinking about this. The most widely used instrument is the HHHHHMM Quality of Life Scale, developed by Dr. Alice Villalobos, a California-based veterinary oncologist and a founder of the Pawspice programme — one of the first structured hospice and palliative-care frameworks for companion animals. The scale asks caregivers to rate seven dimensions on a 1-to-10 basis: Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad. A composite score above 35 out of 70 is considered an acceptable quality of life; below, it prompts a serious conversation with a veterinarian about next steps.

The HHHHHMM scale is not a protocol. It does not tell you what to do. It is, rather, a structured way of paying attention — a method for making the subjective a little less invisible. Villalobos developed it in part because she observed that caregivers, in the fog of grief and hope, often had difficulty distinguishing their own need to keep the animal alive from the animal's capacity to experience a life worth living. The scale creates a small distance between emotion and observation. That distance is, she argues, a form of kindness.

The AAHA Guidelines and a New Standard of Care

In 2016, the American Animal Hospital Association (AAHA) and the International Association for Animal Hospice and Palliative Care (IAAHPC) published joint guidelines on end-of-life care for companion animals — a document that, for the first time, formally articulated palliative and hospice care as a recognised domain of veterinary practice rather than an informal extension of treatment. Updated guidance has followed since. The guidelines establish a framework in which end-of-life care is not the absence of medicine but a different kind of medicine: one oriented toward comfort, dignity, and the quality of remaining time rather than cure or remission.

This is a significant cultural shift in veterinary practice. For much of the twentieth century, the default in companion animal medicine was binary: treat, or euthanise. The hospice and palliative model introduces a middle path — palliative analgesia, appetite support, anti-nausea medication, physical therapy, acupuncture, and modified environments — that can meaningfully extend the period of good quality of life without extending suffering.

The Euthanasia Question

Euthanasia — from the Greek eu (good) + thanatos (death) — is, in veterinary medicine, both a final act of care and a source of profound moral complexity for the people who must decide. The veterinary consensus, reflected in AVMA guidelines, is that euthanasia performed humanely and at the right moment is not a failure. It is, in many cases, the most compassionate decision available. The difficulty is in knowing when that moment has arrived.

Several patterns of decision-making have been documented in the research literature. A 2019 study by Mossello and colleagues in Veterinary Record found that many owners describe acting "too late" in retrospect, often because the emotional difficulty of the decision caused delay beyond the period when the animal had a reasonable quality of life. Others describe guilt at having acted "too early," though in clinical observation this is rarer. The concept of a "good death" is taken seriously in the palliative-care literature as something that can be deliberately aimed for — a death that is peaceful, free of pain, held, and at home where possible.

The Longevity Frontier

Even as this conversation is being refined, the frontier is moving. In February 2025, the US Food and Drug Administration granted Loyal — a San Francisco-based veterinary biotech — a conditional approval for LOY-002, a drug designed to extend the healthy lifespan of large and giant breeds, citing "reasonable expectation of effectiveness." It was a historic regulatory moment: the first time the FDA had accepted the premise that ageing itself, in a companion animal, is a treatable condition. LOY-003, targeting cognitive decline, is in clinical development.

What drugs like LOY-002 promise is not the elimination of old age but its compression: a life in which the decline at the end is shorter and milder relative to the healthy middle. The question they do not answer is the one Villalobos's scale is designed to approach: when the time comes, how will you know? No molecule can answer that. Only observation, honesty, and a good vet can.

The Good Year

There is a concept in palliative care that clinicians sometimes call "the last good year" — a period, near the end of a life, when the disease is being managed, the pain is controlled, and the being in question is, by all observable measures, still present in their own experience. For dogs, this period can be engineered, to a degree, with good veterinary care and honest assessment. The art is in extending it without extending past it.

The owners who navigate this best, in the accounts gathered by palliative-care researchers, are not the ones who refused to let go but the ones who refused to stop paying attention. They watched. They used their tools — the scale, their vet, their own knowledge of their particular dog. They asked the hard question early enough to act on the answer. And they understood that a good death, chosen at the right moment, is itself a form of love.