How often should the assessment be repeated?

Once a week is a good rhythm for most stable senior animals: frequent enough to catch a trend, not so frequent that daily noise gets mistaken for real change. If the condition is unstable or the vet is following an acute problem, you can move to an assessment every two or three days for a limited period, then return to the weekly rhythm once things settle.

Do I have to use an official numeric scale?

There are quality of life assessment tools used in veterinary medicine, and your vet can point you to one suited to your animal. What matters is not the name of the scale but using it the same way every time: the same domains, the same scale and fixed reference sentences for the extreme values. A simple scale applied consistently is more useful than a complex one filled in at random.

What if the score says one thing and my gut says another?

The gap deserves attention rather than being ignored. Sometimes the sheet catches a decline that affection makes hard to admit, other times the gut senses a problem the chosen domains do not capture. In both cases it is valuable material for the vet: describe both the numbers and the feeling, because together they tell more than either alone.

Is this assessment meant to decide about end of life?

It is one of the tools that help face those decisions with clarity, but it does not make them for you and it contains no automatic threshold that fits everyone. The record makes the trend visible, and in particular the ratio of good days to hard days, which weighs heavily at this stage. The decision remains a path shared with the vet, who weighs pain, prognosis and options that are still workable.

Caring for senior pets15 minLevel: IntermediateUpdated on July 30, 2026

Assessing a senior pet's quality of life

A weekly score across several domains to see how a senior pet truly is, the threshold to agree with your vet and the record to bring to the consultation.

Audience: Pet owners
Species: Dog, Cat
Scope: Valid everywhere

What you need before you start

Un quaderno o una scheda dove annotare gli stessi punteggi ogni settimana, sempre nello stesso ordine
La conoscenza di come era l'animale sei mesi fa: quanto mangiava, dove dormiva, quali salti faceva
Un momento fisso della settimana, tranquillo e senza fretta, dedicato solo alla valutazione
Un breve confronto con il veterinario per concordare i domini da osservare e la soglia che fa scattare una visita

The question that runs through an animal's old age is always the same: how is it really doing. The trouble is that the answer shifts with the observer's mood, with a bad day, and with memory, which tends to flatten one week into the next. An animal that declines slowly looks the same as yesterday every single day, and only by comparing two distant months do you notice the change. That is why quality of life is not judged by feel but measured, with a few domains observed the same way each time and a score written down regularly. This guide builds a weekly assessment method that makes the direction visible, helps you decide alongside the vet, and turns a vague worry into data you can look at. It does not replace clinical judgement and contains no scale with absolute cut offs, because those have to be adapted to the individual animal.

Why a score beats an impression

A slow decline is invisible day by day precisely because it is slow. The brain compares today with yesterday, finds a tiny difference and concludes that nothing has changed. Repeated for weeks, this close up comparison hides a descent that only becomes obvious once it is already advanced. A written score breaks the illusion: it compares this week with a month ago, not with yesterday.

There is a second, more practical reason. At the consultation it is hard to reconstruct from memory how the last few weeks went, and the vet's questions go unanswered with any precision. A record kept regularly brings real information into the room instead of memories filtered through the anxiety of the last bad day, and it lets you tell a genuine worsening apart from a single rough day.

The domains to observe each week

Quality of life does not reduce to a single indicator. You look at a small set of domains, each with its own weight, and give each one a value on a simple, constant scale, for instance from zero to five, where the high number means the better condition. Consistency of the scale matters more than the exact number: what counts is using it the same way every time.

Assessment domains and what to observe in practice
Domain	What to watch	Warning sign
Apparent pain	Posture, hesitation, vocalising, reaction to touch in specific spots	Signs present even at rest or increasing
Mobility	Getting up, climbing, jumping, walking without slipping	Giving up movements it used to make
Appetite	How much it eats compared with before, and how eagerly	Food left or interest falling day by day
Hydration and continence	How much it drinks, control of urine and faeces	New accidents indoors or drinking far more
Hygiene	Ability to groom, coat, contact with urine or faeces	It soils itself and can no longer clean up
Interaction and mood	Seeking contact, play, response to names and calls	It withdraws, ignores things it used to love
Good days versus hard days	How many days of the week were calm	Hard days outnumber good ones

The assessment procedure, step by step

Pick a fixed day and time
The assessment should always happen at the same point in the week, in a quiet window, not right after a rough day and not right after an unusually good one. Regularity is what makes the numbers comparable.
Observe before touching
Watch the animal move freely, get up, walk and interact before handling it. Many signs of strain read better in free behaviour than in a forced examination.
Assign a value to each domain
Go through the domains in the same order every time and give each one its score using the reference sentences you defined. Do not go back to correct: the first consistent impression is worth more than a reconsidered average.
Note two or three concrete facts
Beside the numbers write a couple of observable episodes, for instance it did not get onto the sofa, it left half its meal, it sought contact more than usual. Facts explain the numbers when you reread them weeks later.
Record weight and related signs
If the animal has a known condition, add the measurement that matters for it, for instance weight or the parameters the vet asked you to track, so the quality assessment talks to the clinical picture.
Compare with previous weeks
Look at the last month's trend, not just today's value. A single low week can be an episode, three weeks of decline are a direction to bring to the consultation.
Apply the agreed threshold
If the total or a single domain drops below the threshold set with the vet, or if hard days outnumber good ones, book a check instead of waiting for the next assessment.

Reading the trend over time

A single week's value says little. The useful signal is the trend: a score that wobbles but stays level tells of a managed condition, a score falling steadily tells of a decline, and a sudden drop in one domain tells of an acute event to assess at once. That is why it pays to reread the record with a long view, comparing months rather than days.

Stable with small swings: the current management holds, carry on and observe.
Slow steady decline over several weeks: bring the check forward to review treatment and environment.
Rapid drop in one domain alone, for instance appetite or mobility: possible acute event, close contact with the clinic.
Hard days becoming the majority: the signal that weighs most in shared decisions about welfare.
Improvement after a change of treatment or environment: confirmation the change works and should be kept.

Involving the family and the vet

When more than one person cares for the animal, assessments diverge: someone who only sees it in the evening notices different things from someone who spends the day with it. Rather than argue over who is right, it is better for one person to fill in the sheet with everyone's input, so the yardstick stays single. Differences in perception are useful when gathered, not when turned into a dispute.

Who observes what and how it feeds one shared sheet
Observer	Point of view	What it adds
Whoever is home most	Sees the routine and the small daily concessions	Notices gradual changes first
Whoever comes home in the evening	Compares with how it was in the morning	Catches contrasts that escape the constant carer
Whoever takes it to the vet	Reports the full sheet to the vet	Turns weeks of observation into precise questions
The vet	Reads the numbers in the context of the disease	Interprets the trends and redefines the threshold

Bringing the sheet to the clinic changes the visit: instead of answering from memory, you show a trend, and the vet can link the fallen domains to tests, treatment and pain. It is also the most honest way to face difficult end of life decisions together, with shared data in front of you and not only the emotion of the moment.

Frequently asked questions

How often should the assessment be repeated?: Once a week is a good rhythm for most stable senior animals: frequent enough to catch a trend, not so frequent that daily noise gets mistaken for real change. If the condition is unstable or the vet is following an acute problem, you can move to an assessment every two or three days for a limited period, then return to the weekly rhythm once things settle.
Do I have to use an official numeric scale?: There are quality of life assessment tools used in veterinary medicine, and your vet can point you to one suited to your animal. What matters is not the name of the scale but using it the same way every time: the same domains, the same scale and fixed reference sentences for the extreme values. A simple scale applied consistently is more useful than a complex one filled in at random.
What if the score says one thing and my gut says another?: The gap deserves attention rather than being ignored. Sometimes the sheet catches a decline that affection makes hard to admit, other times the gut senses a problem the chosen domains do not capture. In both cases it is valuable material for the vet: describe both the numbers and the feeling, because together they tell more than either alone.
Is this assessment meant to decide about end of life?: It is one of the tools that help face those decisions with clarity, but it does not make them for you and it contains no automatic threshold that fits everyone. The record makes the trend visible, and in particular the ratio of good days to hard days, which weighs heavily at this stage. The decision remains a path shared with the vet, who weighs pain, prognosis and options that are still workable.

What to do next

Pick a fixed day each week and give a consistent score to a few domains, pain, mobility, appetite, hydration, hygiene, interaction and the ratio of good to hard days, using reference sentences defined in advance. Note two concrete facts beside the numbers, look at the last month's trend rather than today's value, and bring the sheet to the visit: agree with the vet on the threshold that triggers a check.