Home › Guides › Senior Dog Care: What Changes After Age 7
One day your dog is sprinting after tennis balls; the next, they’re stiff on cold mornings and napping through the afternoon. Ageing is gradual, but around 7 years old — earlier for big breeds, later for small ones — the changes add up. Senior dogs aren’t broken versions of young dogs; they just need adjusted care. Here’s what changes, and how to keep the golden years genuinely golden.
Short answer: After about 7, dogs slow down: metabolism drops, joints stiffen, senses fade and sleep increases. Switch to twice-yearly vet checks, control weight strictly, adjust exercise to be shorter and gentler, and watch for pain and cognitive changes.
By The Paw Pilot · Updated 3 November 2026 · 8 min read · Senior dog health
Contents
- When is a dog considered senior?
- What changes in a senior dog’s body
- Vet care schedule for senior dogs
- Diet adjustments that matter
- Exercise and daily life tweaks
- Watching for cognitive decline
- Frequently asked questions
When is a dog considered senior?
Size is the biggest factor — large breeds age faster than small ones:
| Size | Example breeds | Considered senior at |
|---|---|---|
| Small (under 20 lb) | Chihuahua, Shih Tzu, Dachshund | 8–10 years |
| Medium (20–50 lb) | Beagle, Cocker Spaniel, Border Collie | 7–8 years |
| Large (50–90 lb) | Labrador, German Shepherd, Boxer | 6–7 years |
| Giant (over 90 lb) | Great Dane, Mastiff, Newfoundland | 5–6 years |
Your vet may start “senior” screening a year or two before these ages — catching changes early is the whole point.
What changes in a senior dog’s body
| Change | What you’ll notice | What helps |
|---|---|---|
| Slower metabolism | Weight gain on the same food | Reduce portions 10–20%; weigh monthly |
| Joint wear (arthritis) | Stiffness after rest, reluctance on stairs | Vet-prescribed pain relief, joint supplements, ramps |
| Muscle loss | Thinner hind legs, weaker back end | Gentle regular exercise; physiotherapy if advised |
| Dulling senses | Not hearing calls, bumping into furniture | Hand signals, night lights, don’t startle |
| Dental disease | Bad breath, drooling, dropping food | Professional dental cleaning under anaesthesia |
| Weaker immunity/organs | More infections, increased thirst | Twice-yearly bloodwork to catch kidney, liver and thyroid issues |
| Coat and skin changes | Greying muzzle, dry coat, lumps | Regular grooming; have every new lump checked |
Stay on top of senior care
Twice-yearly checks, weight tracking, medication schedules — there’s a lot to remember. Try our Senior Dog Care Checklist to keep it all organised.
Vet care schedule for senior dogs
Vet schools recommend stepping check-ups up to every 6 months for seniors. A typical senior visit includes:
- Full physical exam with weight and body condition scoring
- Bloodwork (kidney, liver, thyroid, blood sugar) and urinalysis
- Blood pressure check
- Oral/dental assessment
- Joint and mobility evaluation
Between visits, call your vet about: increased thirst or urination, appetite changes lasting more than a day or two, new lumps, persistent stiffness, coughing, or any sudden behaviour change. In seniors, “just old age” is worth checking — many “age” symptoms are treatable conditions.
Diet adjustments that matter
- Consider a senior formula: lower in calories, with added fibre and joint-supporting nutrients. Transition over 7–10 days.
- Control weight strictly: excess weight is the single biggest accelerator of arthritis. You should still feel the ribs.
- Omega-3 fatty acids: fish-oil supplements (EPA/DHA) have good evidence for joint and cognitive support — ask your vet for dosing.
- Keep protein adequate: unlike old advice, seniors need good-quality protein to fight muscle loss; don’t switch to a low-protein diet without veterinary guidance.
- Warm the food slightly if appetite wanes — smell drives appetite, and older noses are weaker.
Exercise and daily life tweaks
- Shorter, more frequent walks instead of one long hike — 2–3 gentle outings beat a single exhausting one.
- Low-impact activities: swimming (with support) is ideal for arthritic dogs.
- Home adaptations: ramps for cars and sofas, non-slip rugs on hard floors, raised food bowls, an orthopaedic memory-foam bed.
- Keep the mind busy: snuffle mats, puzzle feeders and gentle training games fight cognitive decline.
- Stick to routines: predictable schedules reduce anxiety as senses fade.
Watching for cognitive decline
Canine cognitive dysfunction (doggy dementia) affects a significant share of dogs over 11. Vets screen for it with the acronym DISHAA:
| Sign | Example |
|---|---|
| Disorientation | Getting stuck behind furniture, going to the wrong door |
| Interaction changes | Less greeting, more clingy or withdrawn |
| Sleep–wake changes | Restless at night, sleeping all day |
| House soiling | A previously clean dog having accidents |
| Activity changes | Repetitive pacing, staring at walls |
| Anxiety | New fears or separation distress |
There’s no cure, but early diagnosis opens up diets, supplements, medication and enrichment that can slow progression — so mention changes at the next check-up rather than writing them off as age.
Frequently asked questions
How much should a senior dog sleep?
Expect 16–20 hours a day, up from 12–14 in adults. More sleep is normal; difficulty rising or reluctance to move is worth a vet visit.
Is it old age or illness?
The golden rule: gradual slowing is ageing; sudden changes are illness until proven otherwise. When in doubt, book the check-up.
Should I still walk my arthritic dog?
Yes — gentle, regular movement keeps joints lubricated and muscles supporting them. “Little and often” is the mantra; stop before they’re exhausted.
Do joint supplements work?
Evidence is strongest for omega-3s (EPA/DHA) and weight control; glucosamine/chondroitin show modest benefits in some dogs. Prescription pain relief from your vet makes the biggest difference — don’t let a dog suffer in silence.
How do I know when it’s time to say goodbye?
Vets often use quality-of-life scales (such as the HHHHHMM scale: hurt, hunger, hydration, hygiene, happiness, mobility, and more good days than bad). It’s the hardest question in pet ownership — your vet can guide you honestly and kindly through it.
Related guides
- How Often Should I Feed My Puppy?
- Puppy Vaccination Schedule Explained
- How to Crate Train a Puppy
- How to Litter Train a Kitten
- Best Dog Breeds for Apartments
- Best Cat Breeds for Families
- Why Does My Cat Knead?
- How to Stop Your Dog Barking
- How to Introduce a New Pet to Your Home
Disclaimer: The Paw Pilot guides are for general information only and are not a substitute for advice from your vet. Senior dogs should see a vet every 6 months, and any sudden change in appetite, thirst, mobility or behaviour warrants a prompt appointment.