Caring for an ageing dog or cat: what changes, and what to watch for

Watching a pet age is one of the quieter parts of the whole business, and the most useful mindset is that old age itself is not a disease. Slowing down is normal; a great many of the specific changes we wave away as 'just getting old' are treatable conditions that respond well when caught. The single most valuable thing you can do for an older animal is to notice change and not dismiss it — because much of what shortens the comfortable end of a pet's life is a problem that was visible and read as ageing.

What genuinely changes

With age, most animals slow down, sleep more, and lose some of the edge off their senses — hearing and sight dim gradually, which is why an old dog may seem to ignore a call it simply did not hear. Joints stiffen, so a cat stops jumping to its favourite high spot and a dog is slower on the stairs or after a rest. Weight can drift either way — some older pets gain it as they move less, others lose it, and unexplained weight loss in particular is a change to take to the vet rather than accept. The muzzle greys, the coat may change, and the animal generally wants a bit more warmth and a bit more rest.

What to watch for, and not wave away

Some changes are worth a vet visit rather than a shrug, because they are common in older animals and often treatable. Drinking noticeably more or less, and weeing more, are among the most important — they can point to several manageable conditions and are easy to miss. So are unexplained weight loss, a change in appetite, new lumps, bad breath or difficulty eating, stiffness or reluctance to move, and any change in toileting habits. Cats are the harder case here, because they are extraordinarily good at hiding illness, so in a cat the small signs — sleeping even more, grooming less, going off food slightly — carry more weight and deserve earlier attention.

Behaviour changes count too. An older animal that becomes disoriented, restless at night, or seems to forget familiar routines may be showing age-related cognitive decline, which is a real thing in both dogs and cats and one there are ways to help with. As a rule, the older the animal, the lower the threshold for mentioning a change to the vet should be, and many practices run senior check-ups more than once a year for exactly this reason — an older animal changes faster than a young one.

The small adjustments that help

Comfort is mostly a set of small, practical changes. A soft, warm, easily-accessible bed away from draughts matters more to stiff old joints, and a cat that can no longer leap up appreciates a step or a ramp to its favourite spot and a litter tray with a low side it can actually get into. Food often needs to change — an older animal's diet shifts with a slowing metabolism and changing needs — and dental trouble, which is common and painful in older pets, can quietly be why one has gone off its food. Keep exercise going but gentler and more regular, since movement helps stiff joints as long as it is not overdone.

Old age is also when the relationship with a vet who knows the animal pays off most, because they can tell what has genuinely changed from the baseline. Whether a slowing-down is ordinary ageing or the first sign of something treatable is exactly the judgement they are there to make — and how long a dog is likely to live depends a great deal on size and breed, which shapes when 'old' even begins. None of this stops time, but a comfortable, well-watched old age is very much within your gift, and mostly it comes down to noticing.