When Do Vets Start Calling a Dog Old? What UK Records Show

In UK vet records, 95% of dogs a vet described as old, elderly, geriatric, senior or ageing were 7.25 years or older (Jackson et al., Journal of Small Animal Practice 2025). The median age was 12.5 years.

While a single cut-off is tidy, the age varied by breed. Cocker Spaniels were called old at a median of 11.7 years. Jack Russell Terriers were 14.1.

→ Is It Old Age, or Something Treatable? A Guide to Your Senior Dog

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1. The study

The records. Researchers searched 5.1 million dog consultations in SAVSNET, a database of UK vet records, for five words: ageing, elderly, geriatric, senior and old. They read a sample by hand and kept 832 dogs that were described as old.

The word mattered. The search for “old” was right only about half the time. The authors say it often picked up “descriptions of old inanimate objects such as socks and medicines.” The other four words were right 90% to 99% of the time.

Funding. The work was funded by a veterinary charity. The database has had support from a veterinary association, a UK research council and a dog welfare charity. One author’s post is funded by a pet food company, and that author has received payment for teaching, talks and consultancy.

Our note: One author declares funding from a pet food company.

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2. What vets recorded

Problem area	Share of the 832 dogs
Weight	35%
Joints and muscles	33.4%
Teeth	30.5%
Skin	28.2%
Digestion	22.5%

Specific issues. The most common single entries were tartar, weight loss, vaccination, stiffness and a heart murmur. Many dogs had more than one problem recorded.

Teeth. The odds of a dental problem rose with each year of age, even in dogs already called old. Cocker Spaniels had about 2.7 times the odds of a mixed breed.

Joints. The odds of a joint or muscle problem also rose with age. Neutered males had about twice the odds of entire females.

Our note: The study counts what vets wrote down, not what owners should look for.

→ Dental Disease in Dogs: What Brushing Can and Can’t Do · → Arthritis Treatment: What Works, From Weight to Medication

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3. What this means for “senior” checks

The authors suggest about 7.25 years could be a population-level point for moving into the oldest life stage. They say the findings could help target care “to the right age for the right animals and the right diseases.”

Our note: The paper proposes an age cut-off for research and planning, not a check-up schedule.

→ Senior Bloodwork and Screening: What It Finds, and What It Can’t Promise

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4. What the study can’t tell you

Only what was written. The authors note that “not everything discussed within a consultation is recorded”. Recorded ages were sometimes wrong too.

Not every dog. Practices weren’t chosen at random, and dogs that don’t see a vet aren’t included.

Some figures don’t match. The paper says the odds of a dental problem rose by about 10% a year, but the odds ratio it gives is 1.13, about 13%. It says tartar made up almost 5% of complaints, but its results give 3.7%. It says no weight associations were found, but its results report two.

Our note: We report these as inconsistencies rather than choosing a figure.

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5. What we could not verify

Commonly said	What we found
“Dogs become seniors at 7”	Roughly, for this study. 95% of dogs called old were 7.25 or over, but the age varied by breed.
“Old dogs mostly get fat”	Not shown. Weight problems included weight loss as well as gain.
“Bad teeth are just part of old age”	Common, not inevitable. The study counts problems; it doesn’t test prevention.

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Sources

• Jackson J, Radford AD, Belshaw Z, Wallis LJ, Kubinyi E, German AJ, Westgarth C. Using veterinary health records at scale to investigate ageing dogs and their common issues in primary care. J Small Anim Pract 2025: SAVSNET study, 832 dogs described as old. Funded by a veterinary charity; one author’s post is funded by a pet food company

Always confirm with your vet before acting on anything on this page.