It's Saturday morning. The dog's asleep on the rug by the back door, which is where he sleeps now. You've got a coffee, a piece of paper, and a printout of seven letters your vet sent home last Tuesday: H, H, H, H, H, M, M. The paper is faintly coffee-stained from sitting on the counter all week. You're about to score your pet's quality of life for the first time, and you don't know what the number is going to do to you.
The scoresheet in front of you is the Villalobos scale. Dr. Alice Villalobos, a veterinary oncologist in Southern California, developed it in the early 2000s as the central tool of what she named Pawspice, a hospice-oriented model of care for pets with life-limiting illness. She published it in her book Canine and Feline Geriatric Oncology: Honoring the Human-Animal Bond in 2007, and it's now taught inside the veterinary hospice and palliative-care curriculum administered by the International Association for Animal Hospice and Palliative Care, which you'll see written as IAAHPC once you start reading further. The scale is her work. Any version you see in a clinic, a pamphlet, or a tool like this one traces back to that source.
One thing to get straight before you pick up the pen. The scale is a structured lens for a conversation you're already having with yourself about your pet's last stretch. It doesn't make the decision. The total at the bottom of the sheet isn't a line the pet crosses when the number drops. It's a line you use to see the stretch clearly, so you can talk about what you're seeing with the vet who knows your pet. Nothing you're about to score tells you what to do. What it tells you is what you're looking at.
What the scale is, in plain terms
Seven dimensions, each scored from zero to ten. The letters stand for Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad. The total runs from zero to seventy. Dr. Villalobos's published scale reads a total over 35 as acceptable quality of life to continue hospice care. At 35 or below, the conversation with your vet shifts from optimization to orientation: are we seeing the same slope, and what do we do about it.
The seven dimensions were chosen because they cover the day-to-day experience of being a pet. Hurt and Mobility are the body. Hunger, Hydration, and Hygiene are the routines of being a body. Happiness is the relational dimension, whether the pet is still present with the people and animals they love. And the last M, More good days than bad, is the honest question: across the week, how much of the pet's life feels like a life they're living, not one they're enduring.
The scale doesn't tell you what a three on Hurt means for your specific pet. That's your job and your vet's. What the scale gives you is a repeatable structure, so the score you write down this Saturday compares cleanly with the score you write down next Saturday. Trend beats snapshot. A pet who's been holding at 50 for three months and drops to 42 over two weeks tells you something that the 42 alone never will.
Why Dr. Villalobos developed this, and what it's for
Dr. Villalobos has been practicing veterinary oncology for over four decades, and the scale emerged from her clinical observation that owners of pets with advanced cancer or geriatric disease were consistently making end-of-life decisions without a structured way to observe their pet's condition between visits. She has written that the scoresheet was designed to reduce the experience of a family making the call on a single bad day, which is the worst day to make it. A weekly structured score gives a family months of orientation before the hard conversation becomes unavoidable. That's the whole thesis.
The scale is taught inside clinical curricula alongside the American Animal Hospital Association's end-of-life care guidelines, which frame the veterinary team's role as supporting the owner's decision rather than owning it. The AAHA guidelines walk through the dimensions of the quality-of-life conversation: pain, function, appetite, dignity, and the family's capacity for caregiving. The Villalobos scale is the scoring instrument that makes that conversation specific. The AVMA's euthanasia guidelines, in turn, address the clinical procedure itself and the standards the profession holds for how it's performed. These three sources together (Villalobos's scale, AAHA's end-of-life care framework, and AVMA's euthanasia guidelines) are the current US veterinary-profession consensus on how the decision gets supported.
The scale is widely used by hospice-oriented practices, including the mobile vets who do at-home euthanasia and the IAAHPC-credentialed hospice teams. The scale isn't a late intervention. Started at a chronic-care recheck, well before the hard conversation, it gives a family the months of orientation it was designed for.
How clinicians actually use it
The published scale is written for the family to score at home, between visits. Scored weekly from the week of the diagnosis, or the week the conversation about hospice begins, the sheets come to each recheck and sit next to the physical exam and the labs. A drop across two or three weeks is the kind of change worth raising: which dimensions are driving it, which could respond to a change in medication or routine, and which suggest the disease is moving past the comfort plan in place.
The clinician's read of the scale may not match the family's. A physical exam can catch a skin-turgor change that water-bowl behavior at home doesn't show, so a vet may score hydration lower than you did. Mobility works the same way. A dog who's no longer climbing the stairs to bed is easy to accommodate around, and a family's mobility score can drift higher than the dog's actual function. None of this is a critique of the family's observation. It's the exchange the scale is designed to produce.
What the score means, in context
The published interpretation is short. A total over 35 represents acceptable quality of life to continue hospice care. At 35 or below, the conversation shifts. That threshold isn't really a threshold. It's a starting line for a clinical conversation that's already in progress by the time the score drops that low. The 35 isn't an automatic trigger. It's where the conversation becomes specific.
Two patterns matter more than the total. The first is the trend. A stable 38 that holds for three months is a different picture than a 48 that drops to 38 in four weeks. Both totals are the same; the stretches look nothing alike. The second is dimension asymmetry. A total of 40 composed of a 2 on Hurt and a 9 on Happiness tells you something specific: pain isn't controlled, and the pet's relational life is intact, which is a fixable picture. A total of 40 composed of a 9 on Hurt and a 2 on Happiness tells you something different: the pet's body feels fine and their interior has gone quiet. The second picture is often harder for a clinician to address, and it's where the hardest conversations live.
Read each dimension. Don't only read the total. Reading only the total is the mistake this tool's interpretation text is written to prevent.
How to run it at home
Once a week. Same day, same time, same person when you can. Saturday morning is a common choice because it sits outside the workweek and gives the scorer room to think. The score takes about ten minutes if you're honest with yourself, about five if you already know what you're seeing. Don't try to score on a bad day or right after a rough night. The week is the unit, not the moment.
Run the scoresheet with the person in the household who knows the pet best, even when that's not the person reading this page. Scoring alongside a spouse, a grown child, or a long-term pet sitter gives you a second read, and the scorer isn't carrying the observation alone. A second pair of eyes can catch the week you'd stopped seeing clearly. If disagreement turns up, write down both scores and bring both to the vet. The gap is information.
When you finish, write the date and the total somewhere you'll see it next week. A paper notebook works well. A pinned note on your phone works. An email to yourself works. The tool below will format the scoresheet for copy-paste into any of those surfaces.