
If you have found this page, you are probably carrying a question you can hardly say out loud. So let us say the honest part first: the fact that you are asking is not a betrayal of your dog. It is the opposite – it is what loving an old dog responsibly looks like near the end. This page will not answer the question for you. It will give you the tools veterinarians use to think about it clearly, so that whatever you decide is decided in daylight, with your vet, and not alone at 3am.
Quick answer
Quality of life can be assessed, not just felt. Veterinarians use structured tools – most famously the HHHHHMM scale, which scores Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad, each from 1 to 10 – alongside the simplest tool of all: a calendar marking good days and bad days. Scores above 5 per category (or above 35 total) suggest support is still working; a run of bad days that outnumbers the good is the pattern that deserves an unhurried conversation with your vet.
The HHHHHMM scale, explained gently
Dr. Alice Villalobos, a veterinary oncologist, built this scale to give families something steadier than a feeling to stand on. Seven categories, each scored 1 to 10 (10 is best):
Prefer paper? Download the printable Quality-of-Life Score Sheet PDF: the full HHHHHMM scoring table and a good-days calendar on one page, ready for the fridge and the vet visit.
| Category | The question it asks |
|---|---|
| Hurt | Is pain controlled? Can your dog breathe comfortably – breathing trouble outranks everything else |
| Hunger | Is your dog eating enough, willingly – or only with coaxing, or not at all? |
| Hydration | Drinking enough? (Your vet can show you the simple skin and gum checks) |
| Hygiene | Can your dog stay clean and comfortable – or are soiling and sores winning? |
| Happiness | Joy, interest, connection: does your dog still light up for anything – you, food, the yard? |
| Mobility | Can your dog get up, move to water, go outside – with help that keeps dignity, or not at all? |
| More good days than bad | The summary question – and the one the calendar below answers honestly |
The working threshold: above 5 in each category, or above 35 in total, suggests your dog’s quality of life is acceptable and continuing care and support is reasonable. Scores sliding below that line – especially in Hurt, Happiness, or the good-days count – are not a verdict. They are the signal to bring your vet into the conversation in earnest.
The good-days calendar
The most clarifying tool we know is also the simplest. Take a calendar. Each evening, mark the day: good, hard, or in-between – by your dog’s standards, not a healthy dog’s. A good day might just mean ate breakfast, enjoyed the sunny spot, wagged at dinner. Do it for two weeks before you trust the pattern. Memory is merciful and unreliable – it replays the good moments and blurs the hard nights – and the calendar is neither. When the hard days start outnumbering the good ones week after week, the calendar gives you and your vet something concrete to discuss. Our printable Good Day / Bad Day tracker was made for exactly this, with space for what made each day what it was.
What tends to fool us, in both directions
Two honest cautions from the exam room. First, dogs hide suffering – stoicism is built into them, and “he is not crying” does not mean “he is not hurting”; appetite, withdrawal, and the calendar tell truer stories than vocalizing. Second, single good days rescue us too easily – after a frightening week, one bright morning feels like a turnaround, and sometimes it is. The pattern over weeks is the honest witness. If the picture is complicated by a specific disease, the disease pages can help you see its arc: cognitive decline has its own guide to this question, and so does heart failure.
Bring your veterinarian in earlier than feels natural
This is the single most useful thing on this page: the quality-of-life conversation with your vet is not the euthanasia conversation. It is the conversation that clarifies what is still possible – pain plans may be adjusted, nausea may be treated, sleep may improve, and sometimes the conversation also confirms that comfort is no longer achievable. Vets have this conversation every week and will not think you are giving up; they will think you are paying attention. Bring the scores, bring the calendar, and ask the direct questions: What would you do if this were your dog? What will the next stage look like? What should tell us we are past comfort? You are allowed to ask all of them.
When to have the conversation now
Make the unhurried appointment when bad days begin outnumbering good ones, when Hurt or Happiness scores keep sliding, or when you realize you are managing suffering rather than supporting living. And call promptly – today – for uncontrolled pain, real difficulty breathing, or a dog who has stopped eating and drinking. Those are not quality-of-life questions; they are comfort emergencies your vet can help with now.
References and further reading
- VCA Animal Hospitals. Quality of life at the end of life for your dog.
- Villalobos A. Helping your dog cross the bridge (the HHHHHMM scale). Grey Muzzle.
- Veterinary Partner (VIN). Assessing quality of life in companion animals.
- Fossum TW, Ford S. Senior Dogs: The Essential Guide (2024).
Frequently asked questions
How do I know if my dog still has good quality of life?
Score the seven HHHHHMM categories honestly and keep a two-week good-day calendar. Above 5 per category and more good days than bad suggests support is still working. The pattern over weeks – not any single day – is the answer to trust.
What is the HHHHHMM quality of life scale?
A veterinary tool by Dr. Alice Villalobos scoring Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad, each 1 to 10. Above 35 total suggests continuing care is reasonable; sliding scores mean bring your vet into the conversation.
Will my vet think I am giving up if I ask about quality of life?
No – they will think you are paying attention. This conversation can clarify what is still possible: pain plans may be adjusted, nausea may be treated, sleep may improve, and sometimes the conversation confirms that comfort is no longer achievable. Have it earlier than feels natural.
How do I decide when it is time?
With your vet, with the scores, with the calendar – and with the question turned around: not only “how long can we keep going,” but “is what we are doing still supporting living, or only prolonging decline?” When you cannot see the answer, the disease-specific guides and your vet can help you see the arc honestly. You do not have to decide alone.
Educational content, not a substitute for veterinary advice. Our thoughts are with you and your dog.
This guide is educational and is not a substitute for veterinary diagnosis or care. If you are worried about your dog, talk to your veterinarian.