How to spot the signs of ageing in dogs and adapt exercise, diet and vet care for a happy senior life.
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Most dogs are considered senior from around seven to ten years old, with larger breeds ageing faster than small ones — a Great Dane may be "senior" at six, while a small terrier might not show real ageing until nine or ten. Recognising the signs early, and adapting care accordingly, is one of the kindest things you can do for a dog in its later years.
None of these appear overnight, which is exactly why annual, and later six-monthly, vet check-ups become more valuable as your dog ages — subtle changes are easier to catch in a consultation than to notice day to day at home.
Osteoarthritis is extremely common in older dogs and is often under-recognised, because dogs are stoic and slow-down is easy to mistake for simple "getting old" rather than something manageable. Vets can offer pain relief, joint supplements, weight management and sometimes physiotherapy or hydrotherapy, all of which can meaningfully improve comfort. Watch for:
Adapting the home helps too — non-slip rugs on hard floors, ramps for the car or sofa, and raised food bowls can all reduce daily strain on ageing joints.
Dental disease becomes increasingly common with age and can cause significant, often silent, pain. See our full [dog dental care guide](/blog/dog-dental-care-uk) for brushing technique and what a professional scale-and-polish involves; for senior dogs, anaesthetic risk needs weighing against the benefit, which your vet can help assess through pre-anaesthetic bloodwork.
Canine cognitive dysfunction, sometimes described as a dog equivalent of dementia, can affect older dogs and includes signs such as:
There's no cure, but diet, environmental enrichment, and in some cases medication prescribed by your vet can slow progression and improve quality of life. Speak to your vet promptly if you notice these signs, since some causes of similar symptoms, like pain or sensory loss, are treatable.
Older dogs often need fewer calories as activity decreases, alongside continued high-quality protein to preserve muscle mass, and sometimes joint-support additions like omega-3s or glucosamine. Many complete senior diets are formulated with this balance in mind — our guide to [fresh dog food in the UK](/blog/best-fresh-dog-food-uk-2026) covers options that can be tailored by life stage. Avoid drastic diet changes without your vet's input, particularly if your dog has kidney, liver or heart concerns, which become more common with age.
Keeping a senior dog moving, in smaller and gentler doses, generally helps rather than hinders joint health and mental wellbeing. Consider:
Breed background still matters here — a senior working breed like a [Labrador Retriever](/breed/labrador-retriever) may still want more activity than a senior toy breed, so tailor expectations to what your dog has always needed.
Many vets use structured quality-of-life scales assessing pain control, appetite, hygiene, happiness, mobility and the balance of good days to bad days. Keeping a simple diary of good and bad days over a few weeks can make patterns clearer and give you and your vet objective information rather than relying on memory alone during an already emotional time.
This is understandably difficult to think about, but planning ahead — discussing options with your vet, understanding home versus in-clinic euthanasia, and considering what "a good quality of life" looks like specifically for your dog — tends to reduce distress when a decision eventually needs to be made. Many practices also offer bereavement support or can signpost to pet loss support services, and there's no shame in using them.
This article is general guidance and not a substitute for veterinary advice; always speak to your vet about your individual dog's health, especially if you notice sudden or significant changes.
It varies by size: small breeds are often considered senior from around ten years old, medium breeds from around eight, and large or giant breeds as early as six or seven. Your vet can give a more precise estimate based on your individual dog's breed and health history.
Common signs include stiffness after resting, reluctance to jump or climb stairs, a shortened or altered gait, and increased licking at a specific joint. Because dogs are naturally stoic, it's worth discussing even subtle changes with your vet rather than assuming it's simply normal ageing.
Many senior dogs benefit from a diet with slightly fewer calories, continued high-quality protein and added joint-support nutrients, but changes should generally be gradual and ideally discussed with your vet, especially if your dog has an existing health condition. Sudden diet changes can upset digestion at any age.
Yes, a condition called canine cognitive dysfunction shares similarities with human dementia and can cause disorientation, disrupted sleep and house-training lapses in older dogs. There's no cure, but your vet can suggest dietary, environmental and sometimes medical approaches to help manage symptoms.
Most senior dogs still benefit from regular movement, but shorter, more frequent walks on flat, soft terrain are usually kinder than one long walk, and low-impact options like swimming can help too. The right amount still depends on your dog's original breed activity level and any current mobility issues.
Many use structured scales looking at pain control, appetite, hygiene, mobility, happiness and the ratio of good to bad days, sometimes supported by a diary kept by the owner. This gives a more objective picture than relying on memory alone, which is especially valuable during an emotionally difficult period.
Most UK vet practices can talk through options including home versus in-clinic euthanasia and can often signpost to pet bereavement support services. Planning ahead of a crisis, while difficult, tends to make the eventual decision less distressing for owners.