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This guide supports your pet's aging: it backs up veterinary care, it does not replace it. A sudden change (a fall, difficulty breathing, straining to urinate, collapse) is never just 'normal for their age': call us right away at 514 223-1197.
When does a pet become senior?
'Senior' is not a fixed age. A pet is considered to enter its later years once it has passed roughly the last quarter of its life expectancy. In dogs this depends mostly on size, and it often arrives later than people think.
In dogs
- Large and giant breeds age first: they are often senior by 6 to 7 years.
- Medium breeds get there closer to 7 to 9 years.
- Small breeds live longer: they are not truly senior until around 10.
In cats
- A cat becomes a 'mature adult' around 7, the age for closer check-ups.
- It is considered 'senior' from about 10 to 11 years.
- Beyond that we simply say an older cat: there is no longer a fixed 'geriatric' cutoff, what matters is its health.
They age faster than you
For every year that passes, your pet lives through several. Our calculator turns their age into a human equivalent and places their life stage.
The check-ups that matter
In an older pet, most diseases set in quietly. The best tool is not to wait for symptoms: it is the regular exam, which catches them early, while there is still time to act.
Twice a year
From the senior years on, an exam every six months beats a single yearly visit. Six months in a dog's or cat's life is a long time: a disease can start and progress within it.
What we look for
A senior work-up usually includes a full exam, bloodwork, a urine test, and a blood-pressure reading. In cats we add a thyroid test. And we check the mouth: painful dental disease is common in older pets.
Aging is not a disease
Aging is not a disease in itself. Many problems of later life can be slowed, controlled, or cured when caught early. A check-up that feels 'for nothing' is exactly the one that reassures you, or the one that changes everything.
The silent diseases to watch for
Here is what most often lies in wait for our seniors. These diseases share one thing: their earliest signs are subtle. Learn to spot them, and have them checked without delay. The clues differ between dogs and cats.
The kidneys
Dog and catDrinks and urinates more, loses weight, eats less, breath goes 'off.' Very common in older cats, and often well established before the first signs.
The thyroid
Dog and catIn cats: loses weight despite a ravenous appetite, gets restless, vomits (hyperthyroidism). In dogs: gains weight, slows down, dull coat (hypothyroidism).
The heart
Dog and catIn dogs: a murmur, a cough, tires quickly. In cats: often silent until a crisis, fast breathing, sometimes a sudden paralysis of the hind legs (a clot).
Diabetes
Dog and catDrinks and urinates a lot, loses weight despite a good appetite. Caught with a simple blood and urine test.
Cushing's (dog)
DogIntense thirst, a rounding belly, symmetric hair loss, panting. A hormonal imbalance that sets in slowly.
Blood pressure
CatHigh blood pressure is silent and sometimes shows up as sudden blindness. It often rides along with kidney or thyroid disease, and it is treatable. We measure it in the clinic, especially in senior cats.
Lumps and cancer
Dog and catA new lump, a sore that will not heal, unexplained weight loss. Do not passively 'watch' a mass: have it checked. A simple needle sample tells us a lot, and many cancers are treatable when caught early.
A home tool for the heart
Count your pet's breathing while it sleeps or rests calmly (one breath = one inhale plus one exhale). Count for 30 seconds and double it. At rest, most dogs and cats breathe under about 30 times a minute. A rate that stays above 30, or a clear rise above YOUR pet's usual number, is worth telling us about: it can be an early sign of a heart or lung problem. Count only at rest, never right after exercise or in the heat; for a cat, it must not be purring. A cat breathing with its mouth open, on the other hand, is an emergency.
Mobility and pain
Osteoarthritis is the silent pain of old age. It does not read the same way in dogs and cats, and that is exactly what lets it go unnoticed, especially in cats.
In dogs
Limps, rises stiffly (especially in the morning or after a nap), hesitates at the stairs or the car, tires on walks, licks or chews at a joint.
In cats
Hides its pain: watch for what it stops doing. It no longer jumps up to its perch (or does it in stages), misses the litter-box edge, no longer grooms well (matted coat), hides, plays less.
What really helps
- Weight first. Keeping a lean, healthy weight is the single most effective step, and it is proven: even a few hundred grams off already eases the joints and calms inflammation. It is the number-one lever, before anything else.
- Gentle movement, not strict rest. Short, regular activity maintains mobility better than staying still. Guided rehabilitation through movement, with a professional, can help.
- Supplements, honestly. Omega-3s (fish oil) have the best scientific support; glucosamine and chondroitin, much less. None replaces weight control.
- Newer options exist. Managing arthritis pain has advanced a great deal in recent years, including newer treatments. Talk to your veterinarian: they will choose what suits your pet.
Never give a human painkiller
Never give a human anti-inflammatory or painkiller (ibuprofen or Advil, acetaminophen or Tylenol, aspirin). Acetaminophen is deadly to cats, even a fraction of a tablet, and these drugs damage kidneys and a liver already made fragile by age. Your pet's painkillers are prescribed and monitored.
Adapting the home
A few simple changes prevent falls, spare pain, and extend independence. It is often what changes an older pet's daily life the most.
- Non-slip mats on smooth floors (hallway, in front of the bowls, at the foot of the couch, near the litter box): a senior slips and gets hurt fast.
- A ramp or steps up to the couch, the bed, or the car, instead of jumping. Encourage and supervise the first few times.
- A soft orthopedic bed, kept warm and away from drafts: aging joints tolerate cold and damp poorly.
- Raised bowls for a large arthritic dog, so it bends its neck less. In breeds prone to bloat, ask us first.
- For cats: a low-sided, easy-to-reach litter box, in several spots, so there is neither a jump nor a long walk.
- Water in several places, on each floor, and a night light if its eyesight is fading.
Keep their landmarks
An older pet loves routine: keep the same schedule and avoid moving furniture, beds, and litter boxes. Every change can disorient an animal that sees, hears, or moves less well.
Mind and senses
Old age reaches the mind and the senses too. The trap here is to blame everything on 'age' and miss a problem that can actually be treated.
When behaviour changes
Yowling or barking at night, pacing in circles, seeming lost in a familiar room, forgetting house-training, sleeping by day and restless at night: this is cognitive dysfunction syndrome, a kind of pet 'Alzheimer's.' It is common in older dogs AND cats, and far too often written off. The crucial point: it is never 'just old age' until an exam has ruled out a treatable cause (pain, high blood pressure, an overactive thyroid in cats, kidney disease, loss of sight or hearing). Approaches also exist for cognition itself: talk to your veterinarian.
Eyesight
An eye that turns slightly bluish with age is usually lenticular sclerosis, a benign change that barely affects vision, not to be confused with a cataract (a true opacity that can blind and sometimes goes with diabetes). A SUDDEN loss of sight, though (bumping into things, hesitating in the dark), is an emergency: it can come from a detached retina due to high blood pressure, often recoverable if you act fast.
Hearing
Deafness usually creeps in gently: the pet 'disobeys' because it can no longer hear. Switch to hand signals and vibration, never startle it while it sleeps, and keep a deaf cat indoors, well identified with a microchip.
Feeding and hydrating an older pet
Feeding an older pet well is not about 'less': it is about 'just enough, of good quality.' On this point, a lot of myths die hard.
The protein myth
For a long time people believed a senior should eat less protein 'to spare the kidneys.' That is wrong for a healthy pet: with age it loses muscle, and it needs enough good-quality protein to hold onto it. Protein and phosphorus are cut only for an already-diagnosed disease, such as kidney failure, and on veterinary advice, never 'just in case.'
Weight: two opposite stories
The senior dog tends to gain weight, since it moves less: watch its waistline. The cat, on the other hand, tends to lose weight after 11, and weight loss in an old cat is not trivial: it is a signal to have checked (thyroid, kidneys, diabetes, teeth, sometimes cancer).
Water, yes, but stay alert
Offer water everywhere: a fountain often tempts a cat, and mixing wet and dry food adds moisture. But if it starts drinking noticeably more than before, that is not just 'it's hot out': tell us. It is often the first clue of a kidney, diabetes, or thyroid problem.
A sore mouth kills the appetite
If your older pet chews on one side, drops its kibble, drools, or has strong breath, it is not being fussy: have its teeth checked. A painful mouth is a very common, and very underrated, cause of appetite loss in seniors.
When to see us
A guide is no substitute for your daily eye. Here is what deserves a call, and what cannot wait.
Let us know if
- It drinks or urinates noticeably more (or noticeably less).
- It loses or gains weight for no reason, or its appetite changes.
- There is a new lump, a sore that will not heal, or newly strong breath.
- It rises, walks, or jumps less well; it grooms less (the cat).
- Its behaviour changes: disorientation, disturbed sleep, house-training slipping.
- It is constipated: tell us, but never give an enema at home. Some drugstore enemas are deadly to cats and small dogs.
Without waiting: an emergency
- It struggles to breathe, pants at rest, or (the cat) breathes with its mouth open.
- A cat straining to urinate without success: this is a blockage, a life-threatening emergency, especially in males.
- It collapses, faints, or has a seizure.
- It cannot get up, drags its hind end, or cries out in sudden pain.
- Its belly swells and tightens (especially a large dog), with retching that brings nothing up.
- It loses its sight all at once, or suddenly seems disoriented.
Thinking about their comfort
Caring for an older pet also means staying honest about its comfort. If you find yourself wondering how it is really doing, our quality-of-life assessment helps you put words to what you are seeing, at your own pace, with nothing rushed.
Your questions, our answers
What owners of older pets ask us most often.
My pet sleeps a lot more, is that normal?
Should I switch to a 'senior' food?
Do joint supplements really work?
Is my pet too old for anesthesia or a dental cleaning?
How can I tell it is in pain when it does not complain?
My pet is aging: when will I need to think about its quality of life?
Go further
Observe, get them examined, adapt
A well-followed senior can enjoy good years. It comes down to three moves: observe the small changes (weight, thirst, mood, mobility), get an exam twice a year to catch treatable problems early, and adapt daily life, the home, the bowl, to the pet it is becoming. Aging is not a disease: it is a stage you get through well, together.
Is your companion getting older?
A senior check-up is the best way to keep good years ahead. Our team takes the time it needs to examine your pet and guide you.