A dog is generally considered senior from around 8 to 12 years, and a cat from about 12 to 15 — earlier in giant breeds. Older pets need check-ups at least once a year, and ideally twice, because a great deal can change in twelve months. Watch for greying, reduced activity and more sleep, and be alert to cognitive dysfunction, which is not simply “old age”.
Key facts:
- Senior age: dogs from roughly 8–12 years; cats from about 12–15. Giant breeds age earlier.
- Check-ups: at least one a year, ideally two.
- Normal signs of ageing: white hair, less activity, more sleep, less tolerance of exercise.
- Not normal: disorientation, night-time pacing, soiling indoors — that may be cognitive dysfunction.
- Adapt the home: a padded bed, easy access, no slippery floors, ramps where needed.
Old age is not a disease, but it is when diseases arrive. The art of caring for a senior pet is telling the two apart — and not writing off a treatable problem as “just getting old”.
When is a pet considered senior?
Roughly from 8 to 12 years in dogs and 12 to 15 in cats, though it depends heavily on size: giant breeds age considerably earlier, sometimes from six or seven, while small dogs and cats often stay youthful for far longer. Your vet will tell you where your animal sits.
What changes are normal?
Greying around the muzzle and eyebrows, a gradual reduction in activity, more sleep, less tolerance of long walks, some stiffness after rest, and duller senses — hearing and sight both fade. Muscle mass declines and the coat can lose condition. None of this is alarming in itself; what matters is the rate at which it happens.
What is not just old age?
A great deal that gets dismissed as ageing is actually treatable. Reluctance to jump or climb stairs is usually osteoarthritis, and it responds to treatment. Drinking and urinating much more can be kidney disease or diabetes. Bad breath is dental disease, which is painful and can damage the heart. And disorientation, night-time pacing, barking at nothing or soiling indoors may be cognitive dysfunction syndrome — the animal equivalent of Alzheimer’s — which has no cure but whose progression can be slowed if it is caught early.
The rule of thumb is simple: if it is new, tell your vet. “He’s just old” is the most expensive sentence in veterinary medicine.
How often should a senior pet see the vet?
At least once a year, and ideally twice. A year is a long time at that stage of life — proportionally, it is like a person going seven years between check-ups. Senior consultations usually include blood and urine tests, blood pressure and a careful look at joints, teeth, heart and kidneys, because those are where trouble starts.
How do I adapt the home?
Give it a padded, supportive bed, away from draughts, cold and damp. Put rugs or runners on slippery floors, because a dog with weak hindquarters that slips loses confidence fast. Provide ramps or steps for the car and the sofa. Keep food and water easy to reach — raised bowls help arthritic necks — and, for cats, provide a litter tray with a low entry. And do not move the furniture around: an animal with failing sight or memory relies on the map it already has.
Frequently asked questions
At what age is a dog senior?
Roughly 8 to 12 years, though giant breeds age earlier, sometimes from six or seven.
My old dog struggles with the stairs — is that just age?
Usually it is osteoarthritis, which is treatable. Tell your vet rather than accepting it.
How often should an older cat see the vet?
At least once a year, and ideally twice, with blood and urine tests.
My senior dog paces and barks at night — why?
That is not normal ageing. It may be cognitive dysfunction, and early treatment slows its progression.
The senior years are the ones with the highest vet spend: consultations, tests and lifelong medication. Cover must be in place before a condition appears, since pre-existing conditions are excluded. Petplan España (Petplan Ibérica, S.L.) reimburses 100% of the vet bill up to €3,100 a year, with a €45 excess, at any vet you choose. See the policy terms.
