Senior Cat Quality of Life: 6 Lines, 30 Points, 2 Weeks

A senior cat's decline is slow and the baseline is easy to lose. A written scale fixes that: 6 lines scored 0 to 5, 30 points total, filled in every 2 weeks. It turns a vague worry into a number the vet can act on, and protects the cat from decisions made too early and 3 months too late.

Why a number beats a feeling

Owners adapt. A cat that stops jumping onto the bed in March has an owner who moved the bed to the floor by June and remembers neither event clearly. Memory also flattens: a bad Tuesday and Thursday merge into a bad week, and a good fortnight erases both.

Written scores hold still. Cats are senior from about 11 and geriatric from 15; roughly 1 in 3 has chronic kidney disease, 1 in 10 has hyperthyroidism, and arthritis shows on X-rays in over 60 percent of cats past 12. A senior cat is usually managing 2 or 3 conditions at once, and a flattening score is often the first sign that one of them moved.

The six lines, and what 5, 3, and 0 look like

Score each line 0 to 5, where 5 is normal for the cat's age and 0 is as bad as it gets. Score the cat you have, not the cat you had at 4. A 16 year old that sleeps 18 hours a day is not a 5 on activity, and should not be marked down for it either.

• Appetite. 5: eats the full ration in under 10 minutes, twice a day. 3: eats about 75 percent, or leaves food and returns. 0: needs hand feeding or refuses for 24 hours.
• Drinking. 5: normal bowl level, roughly 45 mL per kg per day. 3: noticeably more, bowl refilled twice a day. 0: drinking constantly, or not drinking at all.
• Activity. 5: climbs stairs, jumps onto a chair without hesitation. 3: jumps down but not up, sleeps more, plays 2 minutes. 0: will not move to the litter box.
• Grooming. 5: coat smooth, no mats. 3: scruffy patch on the lower back, nails long. 0: matted, soiled, or over-grooming a bald patch.
• Social contact. 5: greets you at the door, sleeps on the bed. 3: seeks company but less often, hides 2 to 3 hours a day. 0: hides all day, does not respond to voice.
• Pain signs. 5: no change in posture, jumps clean, no reaction to touch. 3: stiff after rest, hunched sitting, avoids the stairs. 0: cries when lifted, guards the abdomen, cannot settle.

Score bands and what to do with them

Total score	What it usually means	Action	Recheck interval
27 to 30	Stable for age	Keep the routine	Every 14 days
20 to 26	Mild drift, 1 or 2 lines down	Book a vet visit within 7 days	Every 7 days
13 to 19	Clear decline, often 2 conditions	Exam plus bloodwork and blood pressure within 3 days	Every 3 to 4 days
8 to 12	Poor, the review line	Same-week exam, reassess every treatment	Every 2 days
0 to 7	Very poor	Discuss palliation or euthanasia honestly	Daily

Under 12 out of 30 is the line most vets use to force a full reassessment: repeat bloodwork, check blood pressure, screen for dental pain and arthritis, and ask what is untreated. It is not a euthanasia trigger. A cat at 10 out of 30 with untreated hyperthyroidism or a broken tooth often scores 22 within 6 weeks of treatment.

Every 2 weeks, same day, same time

Pick a fixed slot, Sunday before the evening meal for example, and score in the same order each time; scoring before a meal gives a truer appetite line. Ten minutes is enough, and 26 entries a year show a slope instead of a mood.

Weight belongs in the same log, every 2 weeks, on the same scale. A drop of 5 percent in 1 month or 10 percent in 6 months is a red flag regardless of how the other lines score. So is a sleeping respiratory rate above 30 breaths per minute; that one number catches heart failure and fluid before the cat is gasping.

Lines that hide disease in old cats

Appetite holding while weight falls is the classic hyperthyroid pattern, and also what intestinal disease looks like. Drinking more with a normal appetite points to kidney disease or diabetes. A cat that stops grooming its lower back is often showing arthritis, because that is the part it cannot reach; it may still jump up and only hesitate coming down.

Pain is the line owners underrate most. Cats do not limp the way dogs do; they get still. The Feline Grimace Scale, which scores ear position, eye squeeze, muzzle tension, whiskers, and head position, is a useful cross-check, described in the cat pain scale. A cat scoring 1 or 0 on the pain line for 2 consecutive entries needs an exam, not a stronger dose of anything.

What can be fixed, and how fast

Most of the drop in a senior cat's score is treatable. Dental disease affects an estimated 50 to 70 percent of cats over 5, and pain relief plus a dental often restores the appetite and grooming lines within 2 to 4 weeks. Hyperthyroidism responds to medication within 10 to 14 days. Arthritis pain improves on a monthly injection or a daily NSAID, both prescription-only and dosed by weight and kidney values, so the dose comes from the vet with the bloodwork. Blood pressure above 160 mmHg on 2 visits is treated, because untreated hypertension blinds cats.

Cognitive changes are the exception; they progress. Night yowling, missed litter boxes, and staring at walls are covered in cognitive dysfunction in senior cats, and the score usually slips 2 to 4 points over 3 months without intervention.

Using the score in the exam room

Bring the last 6 entries, not a description. A vet looking at 20, 19, 17, 18, 14, 11 sees a 6 week trend and knows what to test first; a vet hearing the cat is a bit quiet starts from zero. The visit is also when to confirm vaccine and parasite timing, which shifts with age and kidney status; the grid is in the vaccine calendar.

Decide the thresholds with your vet while the cat is well, in writing: 2 consecutive scores under 12 means a full workup; 2 under 6 with pain uncontrolled means the other conversation. Decisions made in advance are the ones owners do not regret.

Start tonight

• Print 6 rows and 6 columns, write the date, and score the cat before its next meal.
• Add weight in kg and sleeping respiratory rate to the same sheet.
• Photograph the sheet so a lost paper does not lose the trend.
• Book the 6 month senior exam, including bloodwork, blood pressure, and a urine test.
• Agree the 2 numbers in writing with your vet: the score that triggers a workup, and the score that triggers a different conversation.

The scale does not decide anything. It stops a slow decline from being discovered when the only remaining options are dramatic.

Frequently asked