How do you know when it's time?
There is rarely a single, obvious moment, and waiting for one can mean waiting too long. This guide explains how vets think about quality of life, and offers a gentle way to see your own pet's days more clearly.
Updated August 2026
There is no perfect moment
Most owners hope their pet will tell them, somehow, when it's time. Sometimes that happens. More often there's a slow slide (a little less eating, a little more sleeping) and no one day that looks different from the day before. Vets have a saying that is hard to hear but kind at its heart: better a week too early than a day too late.
Guilt in both directions is normal. Wondering whether you're deciding too soon is evidence of how much you care, not a sign you're wrong.
How vets assess quality of life
Vets commonly use structured scales. The best known is the HHHHHMM scale, which scores Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad. The exact numbers matter less than the habit of looking at each area honestly, on an ordinary day rather than a good one.
The pattern vets watch for is when the things that made your pet them (greeting you at the door, demanding dinner, following the sun around the house) quietly fall away, and what remains is mostly sleeping, discomfort, and effort.
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A gentle checklist
Species matters here. Dogs and cats hide decline differently. These guides go deeper:
For dogs
Signs specific to dogs: mobility, appetite, breathing, and the withdrawal that's easy to miss.
For cats
Cats are masters at hiding pain. What to watch for when nothing looks obviously wrong.
A gentle quality-of-life check
Tick anything that's true most days. Nothing is recorded. This is just for you.
Tick anything that sounds familiar. There are no right answers.
Tracking good days and bad days
A calendar on the fridge, marked each evening with a simple good/bad, cuts through the fog better than memory can. When bad days outnumber good ones for a week or two, or when the good days are merely "not bad", that's the pattern vets ask about first.
It also helps to write down three things your pet loved when they were well. When two of the three are gone and not coming back, many owners find the decision, while no less sad, becomes clearer.
Talking it through with a vet
You don't have to decide alone, and you don't have to book anything to talk. Many home-visit vets offer quality-of-life consultations, at your home or by phone, where the only agenda is understanding how your pet is doing and what the options are, including palliative care if it's not time yet.
Common questions
What if my pet still eats well?
Appetite is only one measure, and some pets eat until the very end. Vets weigh appetite alongside pain, mobility, breathing and joy. A dog who eats but can no longer stand is not doing well, however good dinner still tastes.
Is it wrong to decide based on our family's capacity?
No. Around-the-clock nursing, carrying a large dog outside at 3 am, medicating a cat who fights it: caring capacity is a real part of quality of life, your pet's and yours. Vets consider it a legitimate factor, not a selfish one.
Could a vet just tell me what to do?
A vet won't make the decision for you, but they will be honest about prognosis, pain, and what they would consider in your position. Most owners find that conversation lifts more weight than any checklist.
What if I'm not ready?
Then don't decide today. Read about at-home palliative care: keeping your pet comfortable can buy real, good time, and having a plan tends to ease the fear of the decision itself.
Talk it through, without deciding anything
Many home-visit vets will talk by phone first, or visit for a quality-of-life consultation. Get matched with a home visit vet. "I just want to talk it through" is a completely normal request.