How to Tell If Your Cat Is in Pain — and When Their Quality of Life Is Slipping

Your cat can't tell you when something hurts. Worse, they're built to hide it — an instinct so strong that a cat with real, treatable pain will still jump onto the sofa, clean their bowl, and curl up purring like nothing's wrong. So the hardest part of loving an ageing or unwell cat isn't the big, obvious crisis. It's the quiet, gradual slide that's almost impossible to see from the inside.

This guide is about learning to see it. We'll cover the subtle behavioural signs of pain in cats, how veterinarians actually measure quality of life, and — most importantly — how to track the trend at home so a slow decline doesn't stay invisible until it's advanced. None of this replaces your vet. It just helps you walk in with something better than a gut feeling.

How can you tell if your cat is in pain?

The most reliable signs of pain in cats are behavioural, and they're usually subtle. Because cats instinctively hide weakness, they rarely cry out until pain is severe. Instead, watch for a cluster of small changes: no longer jumping to favourite high spots, hesitating on stairs, hiding more, sleeping in a hunched "loaf" with paws tucked, or a coat that's gone dull, greasy, or matted because grooming has dropped off.

Litter-box habits matter too. Straining, going just outside the box, or difficulty getting in and out can all signal pain — from arthritis to urinary or kidney trouble. Temperament shifts are just as telling: a cat in chronic discomfort may withdraw from the family, resent being picked up or brushed, or lash out when a sore area is touched. None of these is proof on its own, but two or three together — or a familiar habit quietly disappearing — is worth taking seriously. The pattern is the signal, not any single moment.

This is exactly why arthritis and other chronic conditions go undertreated in cats for so long. Owners expect a limp; what they get is a cat who simply "sleeps more" and "isn't as playful." For how to catch and monitor that specific pattern, see our guide on spotting and tracking arthritis in dogs and cats.

What quietly signals that a cat's quality of life is slipping?

Quality of life isn't a single thing — it's the balance of several. Veterinarians break it into concrete factors so nothing important gets overlooked, and the same framework works at home. The widely used HHHHHMM scale, developed by veterinary oncologist Dr. Alice Villalobos, tracks seven of them.¹ Reframed as everyday questions, they are:

• Hurt. Is pain controlled, and can your cat breathe easily? Comfort and easy breathing come first.
• Hunger. Is your cat eating willingly and keeping food down, or do you need to coax and hand-feed every meal?
• Hydration. Are they drinking enough, or does hydration need help (for example, vet-directed subcutaneous fluids)?
• Hygiene. Can your cat stay clean and dry — grooming normally, no soiling, matting, or pressure sores?
• Happiness. Do they still show interest — seeking you out, purring, playing, or watching the window?
• Mobility. Can they get up, move around, and reach food, water, and the litter box, with or without a little help?
• More good days than bad. Over a week, do the good days clearly outnumber the ones dominated by pain, nausea, or distress?

Read together, these turn a vague worry into something specific. A cat can score well on mobility but poorly on appetite, or the reverse — and knowing which factor is slipping tells you exactly what to raise with your vet, who can often improve it. If your cat is also a senior, our senior pet care checklist pairs well with this as a daily routine.

Cats also have a validated pain tool of their own: the Feline Grimace Scale, developed at the Université de Montréal, which reads pain from the face — narrowed eyes, ears rotated outward, a tense muzzle, whiskers pulled forward, and a lowered head.⁴ It's a useful lens in the moment, but like any single reading, one grimace check is still just a snapshot. The real picture comes from watching how these signs move over days and weeks.

Why one bad day isn't the answer — track the trend

Here's the trap: quality of life changes so gradually that any single day tells you almost nothing. A cat can have a rough morning and a bright evening; you can catch them on their worst hour or their best. Judged one day at a time, decline hides in the noise. That's why the most important word in this whole subject is trend.

Score the same factors on a set interval — weekly for a stable senior, every few days during a decline — and something powerful happens. A number that drifts from 48 to 44 to 39 over three weeks is telling you a story you'd never notice day to day. The point isn't the individual score. It's the direction of travel, caught early enough to do something about it with your vet.

Doing this on paper works, but it's easy to let slip. Logging comfort, appetite, and mobility in one place — where the whole household can add what they see and the trend draws itself — makes a slow slide visible instead of invisible.

How do vets actually measure a cat's quality of life?

Veterinarians rely on structured, published scales rather than a single impression — and the two best known are freely available for owners to use. On the HHHHHMM scale, each of the seven factors is scored from 0 to 10 for a total out of 70; Dr. Villalobos' published guidance is that a total above 35 suggests quality of life is acceptable enough to continue supportive care.¹

The second is the JOURNEYS scale, developed by Dr. Katie Hilst.² It scores eight areas — including one many owners overlook: you, the caregiver's own time, finances, and emotional capacity. JOURNEYS publishes no fixed cutoff on purpose; it's designed to track change over time and to make honest space for the caregiver's limits, which are a legitimate part of the picture.

Both scales exist to do the same thing: replace a swirl of worry with something you can measure, repeat, and hand to your vet. Our cat quality of life calculator implements both, so you can pick whichever fits your situation — or run both and compare.

When is it time to talk to your veterinarian?

No score decides this, and no article should. But some signs mean the conversation shouldn't wait. Reach out to your vet promptly if you notice persistent, poorly-controlled pain or laboured breathing; refusal to eat or drink; ongoing dehydration despite fluids; a loss of mobility that stops your cat reaching food, water, or the litter box; or — the signal that matters most — bad days that have started to outnumber the good.

Having that conversation early isn't giving up; it's the opposite. Vets and services like Lap of Love can often introduce comfort options owners didn't know existed — pain protocols, anti-nausea support, appetite stimulants, mobility aids, and, when the time comes, gentle end-of-life care.³ Walking in with a few weeks of scores turns a painful, abstract decision into a grounded, shared one. If your cat has a chronic condition like kidney disease, our guide on what to log for a cat with chronic kidney disease shows exactly what to track, and our vet visit preparation checklist covers what to bring.

Important medical disclaimer: SteadyTails is a logging and coordination tool. This guide is for general reference and does not provide veterinary advice, diagnosis, or treatment. Quality-of-life scales support your decisions — they don't make them. Always talk with your veterinarian, who can weigh any score against your cat's specific diagnosis and comfort options.