Senior dog
The HHHHHMM scale is the most widely used quality-of-life tool for senior dogs. Here's how it works, what each H stands for, and how to use it without making yourself anxious.
If you've ever sat with a vet for a senior dog appointment, you've probably been handed a sheet of paper that looked like an acronym soup. HHHHHMM. Seven letters, two columns, a score from one to ten on each row.
It's the most widely used quality-of-life scale for dogs and cats. It was developed in the early 2000s by Dr Alice Villalobos, a US-based oncology and palliative care vet, and it's been quietly doing its job ever since.
The scale doesn't tell you when your dog's time is. It gives you a structured way to look at the same dog every week without your worry skewing the picture. That's an underrated thing. When you're emotionally close to an old dog, every week feels different — sometimes for reasons that have more to do with you than them. The scale slows that down.
Three things to know up front:
Two H's stand for Hurt. Two for Hunger and Hydration. Two more for Hygiene and Happiness. Then M for Mobility and M for More good days than bad.
Here's what each one means in practice, with the kind of plain-language description you can score against without needing a clinical background.
The question: is the dog's pain adequately managed?
A 10 means no signs of pain — moving comfortably, settling well, no flinching, no panting at rest, no licking at one spot, no whining when getting up. A 0 means the dog is showing constant or severe signs of pain that aren't responsive to current medications.
Most senior dogs on managed pain medication score 7–9 here. The drift to watch for: incremental stiffness in the morning, a slight reluctance to jump up onto the sofa they used to launch onto, panting at rest in a cool room. These don't mean disaster; they mean a conversation with your vet about whether the medication needs adjusting.
The question: is the dog eating enough, and willingly?
A 10 means eating their normal portions with interest, finishing meals, looking forward to dinner. A 0 means refusing food entirely or only managing with hand-feeding and persuasion.
Senior dogs often have small appetite drift — they're slightly less excited about kibble, take longer to finish a meal, leave a bit at the bottom of the bowl. That's not a 0. That's maybe a 7 or 8. Score the willingness, not the portion size; a dog who eats slowly but finishes is doing well.
A useful nuance: nausea-driven inappetence is different from disinterest-driven inappetence. A dog who comes to the bowl, sniffs, and walks away has a different problem to a dog who eats happily but takes 20 minutes. Your vet will care about that distinction.
The question: is the dog drinking enough water and staying hydrated?
A 10 means drinking normally, no signs of dehydration. A 0 means refusing water or showing clear dehydration signs (sticky gums, skin tent that doesn't snap back, sunken eyes).
Most senior dogs score 8–10 here unless something specific is going on. Increased thirst is also worth flagging — it can indicate kidney issues or diabetes and warrants a vet conversation rather than just a lower score.
A common practical fix that bumps this score: a water fountain. Older dogs sometimes drink less from bowls and more from flowing water; the absorption is the same but the willingness is different.
The question: is the dog able to stay clean, dry, and groomed?
A 10 means the dog grooms themselves normally, doesn't soil, doesn't have pressure sores, has a clean coat. A 0 means severe incontinence, matted coat, pressure sores, or skin issues that the dog can't manage on their own.
This category covers a lot of the day-to-day dignity questions. A dog who's stopped grooming their hindquarters because they're stiff, who's having occasional accidents because they can't make it through the night, who's developing slight pressure sores on a hard bed — these are all 5s or 6s. They're fixable with practical changes (memory foam beds, more frequent toilet trips, gentle grooming help) before they become a real problem.
A clean dog who looks well-cared-for is a happier dog. The grooming, the wiping after toilet, the bedding changes — they all matter more than they look.
The question: does the dog still find moments of joy, recognise the family, want to engage?
A 10 means tail wagging, recognising you when you come home, wanting to play, enjoying favourite things. A 0 means flat, withdrawn, not engaging, not responding to favourite people or favourite things.
This is the most subjective category. It's also the one owners often get wrong in both directions. Some owners insist their dog is "still happy" because they're still alive; some assume their dog is "miserable" because they sleep more.
A good test: does the dog still light up for the specific things they have always loved? Their favourite person walking through the door. The bag of cheese coming out of the fridge. The lead being picked up for a walk they can still manage. The car door opening for their favourite trip. If three or more of their specific lights are still on, the score is probably 7+. If most of them have gone out, look honestly at whether you're scoring optimistically.
The question: can the dog move enough to do the things they care about?
A 10 means walking, running, getting up easily, climbing stairs comfortably. A 0 means unable to stand or move without help.
This is where the scale catches a lot of senior dog decline. Mobility scores tend to drop earlier than the others and pull the total down. The key word is enough — a dog who can no longer chase a ball but can still potter around the garden and enjoy a short walk is at a 5 or 6, not a 0.
Watch for: stairs becoming a struggle, slipping on wooden floors, taking longer to get up after lying down, shorter walks, reluctance to jump into the car. Each of these is fixable to some degree (rugs, ramps, harnesses, mobility aids) but they tell you the score is shifting.
The question: looking at the last 7–14 days, were there more good days than bad ones?
A 10 means mostly good days with a few off ones. A 0 means most days are bad — the dog is in pain, withdrawn, not eating, struggling.
This is the meta-category. It's the one Dr Villalobos placed last on purpose. The other six describe today; this one describes the trend.
A dog scoring 6+ on the other six but trending toward more bad days than good is telling you something the other categories aren't quite capturing. Conversely, a dog scoring 4–5 on some categories but mostly having good days is still in a good place; the others might just be the realities of being old.
When this score drops below 5 — more bad days than good — most palliative care vets consider that a meaningful signal worth a real conversation about the future. Not the conclusion. The conversation.
Once a week. Sunday evening if you want a rhythm. Sit down with whoever else is involved with your dog and walk through each category. Give a number. Write it down somewhere consistent.
The scale is a structured way to look at the same dog every week without your worry skewing the picture.
Look at the trend over the last 4–6 weeks rather than the single week. A dip from 45 to 42 isn't a verdict — it might be a bad week, a flare-up, a course of new medication settling in. A drop from 45 to 38 over six weeks with no clear cause is a different signal.
Bring the trend to your vet at the next appointment. Don't bring a single score — bring the line on a graph. Vets find this much more useful than "she seems a bit worse." Specific is helpful. Trend is what they look for.
The scale doesn't:
If you live with other people, do the scale together. Two people scoring the same dog independently often produce different numbers — and the conversation about why is more valuable than the score itself.
One of you sees the dog at breakfast. One of you sees the late-night toilet trip. One of you remembers what last weekend looked like; the other was away. The score that comes out of the conversation is more reliable than the one any single person produces alone.
If your dog is over 8 and you've never used the scale before, here's how to start without ceremony:
If the trend is stable, keep going monthly instead of weekly.
If the trend is dropping, take the data to your vet at the next check-up. They'll thank you for it.
Is the HHHHHMM scale the only quality-of-life scale for dogs? No. The Lap of Love Quality of Life Scale, the JOURNEYS scale, and several research-based scales exist. HHHHHMM is the most widely used and easiest for owners to apply at home; the others are more useful for specific contexts (oncology, palliative care, end-of-life decision support).
Does my vet need to be involved? Not for scoring. For interpretation, yes — bring the data to your next check-up. A score is one input; your vet's clinical picture is another. The two together produce a better picture than either alone.
What if my scores keep going up and down each week? That's normal for some senior dogs, particularly those with flare-ups (arthritis, GI issues). Look at the four-week average rather than week-to-week.
At what age should I start using the scale? There's no fixed age. Most owners find it useful from around 8 for medium dogs, 6 for giant breeds, 10 for small breeds. Earlier if there's a specific health condition.
Should I share my scores with my dog walker or daycare? Yes if they're involved in the dog's care. People who see the dog from a different angle often notice different things, and their input on Happiness and Mobility especially can be very useful.
Superkin tracks quality of life automatically from the notes your household logs through the week. Stiffness, appetite, sleep, mood — anything the team mentions feeds into a weekly snapshot that mirrors the HHHHHMM categories without you having to formally score every Sunday.
When the trend shifts, the Sunday plan flags it. Not as a diagnosis — as a "worth a vet check" prompt with the specific observations attached, ready for your next appointment.
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Last updated 19 May 2026. This guide is general advice on senior dog quality of life and not a substitute for veterinary care. Always speak to your vet about your dog's specific situation.
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