Why This Vet Checks Senior Dogs Twice a Year: The Watch-Outs
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Senior dogs can appear healthy despite ongoing internal changes that come with aging. For this reason, veterinarians strongly recommend examinations every six months rather than once a year.
Many dogs live well into their teens in good health. Often, the ones who reach that age are the dogs whose early changes were caught and managed before they became serious, while there was still time to act.
I'll cover when a dog becomes a senior, what your vet looks for that you can't, and the daily habits that make the biggest difference.
This article was created in partnership with Royal Canin.
Dogs are generally senior from about seven years old, and earlier in large breeds.
The changes that matter most are the ones you can't see: kidney, liver, and heart shifts begin before any stiffness shows.
See your vet twice a year to have their bloodwork checked, and to catch those changes while they're still treatable.
A healthy weight can add years to your dog’s life, and it’s one of the simplest things you can manage at home
Learn your dog's normal. Any change in appetite, thirst, toileting, or weight is worth a vet call.
When Does a Dog Become a Senior?
Most dogs are considered senior from around seven, though in large breeds the physical signs of aging often appear earlier.
Size is the main factor. Most dogs reach the senior milestone around seven, but in large and giant breeds the physical changes of aging often show up earlier, sometimes as young as five or six, even if the age marker is the same. The first signs are usually subtle: a little stiffer getting up, a bit more stretching than they used to do, slowing on the back half of a walk. Our guide to mobility changes in older dogs covers what is normal and what is not.
What This Vet Sees That You Can't
The stiffness you notice is only part of the story. The bigger changes at this age happen out of sight, in the kidneys, liver, and heart.
What you see at home is only the surface. The slower mornings and the greying muzzle are real, but they are not the whole story. Underneath, organ function is quietly starting to shift.
Every week I see dogs who are bright, eating well, and walking normally, yet already have early changes underway. That is why "he seems fine" is not the same as "he is fine". A senior check is built to look past the surface, and our guide to kidney and urinary health in dogs covers one of the systems most worth watching.
Why Your Dog Should See the Vet Twice a Year
For a senior dog, once a year is no longer enough, which is why the right rhythm is a check every six months.
For a young, healthy dog, once a year is fine. For a senior, a year is a long time. It is long enough for a kidney or heart change to go from invisible to advanced. Twice-yearly checks for senior pets, each with routine bloodwork and screening, close that gap and find the shift while it is still early.
A senior check looks well beyond a quick once-over. Your vet weighs and body-condition scores your dog, runs bloodwork and a urine test to read the kidneys and liver, listens to the heart, and checks teeth, joints, eyes, and any new lumps. Caught early, many of these changes can be slowed or managed before they affect your dog day to day.
"Know your dog's normal. If their eating, drinking, toileting, or weight starts to change, that's the conversation to have with your vet. The earlier the better. At this age I'd never want to see a dog once and then not again for a whole year, because things can change quickly."
Dr Jane Miller
Veterinarian & Vets Love Pets Partner
A Healthy Weight Can Mean More Years Together
Between the vet checks, three daily habits do the most for how your dog ages: weight, movement, and life-stage nutrition.
Much of what a vet picks up in a senior check is shaped at home, between visits. Extra weight, sore joints, the earliest changes: daily life influences them all. Three habits carry most of the load.
Keep them lean. Did you know up to 60% of dogs are classified as overweight or obese, yet only 17% of owners recognise this in their pets? Their weight is the single most powerful thing you control. Excess weight does more than load the joints — it actively drives inflammation, and carrying even moderate extra weight can shorten a dog's life by up to two years. Keeping your dog lean is the most effective step you can take for their senior years, and our guide to a healthy weight has the practical side.
Heavy joints are not happy joints. Out of everything that shapes how a dog ages, weight is the one lever fully in your hands. It also pays back the most for the least effort.
Keep them moving. Regular, gentle walking keeps fitness up and maintains the muscle that supports aging joints. Overweight pets face a higher risk of osteoarthritis so movement and a healthy weight work together our guide to arthritis in dogs covers how to keep a stiff senior comfortable and active.
Nutrition for Senior Dogs
Royal Canin’s senior range has diets that support the whole aging body at once: weight, muscle, joints, and the organs a senior check watches.
Nutrition is where you can do real work between visits. As dogs age their energy needs drop, so a senior diet is essential to keep weight in check while still delivering what an older body needs. A few properties matter most:
Controlled calories to hold a healthy weight as the metabolism slows.
Quality, digestible protein to preserve muscle, which older dogs lose more easily.
Omega-3 fats to support aging joints, skin, and coat.
Added joint-support nutrients, such as glucosamine and chondroitin, in diets aimed at mobility.
Feeding your dog a complete and balanced diet, tailored to their aging health needs is essential, and your vet can help you match your dog's needs to a recommended diet.
Many pet parents prefer a premium complete diet for exactly that reassurance, since it comes ready to feed and nutritionally balanced. As a vet-recommended example, Royal Canin's senior range is built for this.
When joints need more targeted help, Royal Canin Mobility C2P+ is built for that, and you can browse the full senior dog food range.
"My senior dog loves it. I’ve been feeding my older dog Royal Canin Mature Consult for several years and have been happy with the results. My dog enjoys the taste, eats it consistently, and seems to have good energy. The kibbles size is suitable and the 10kg bag is convenient. Overall, I’m satisfied with the product and would recommend it for senior dogs."
Felicia R.
Vets Love Pets Customer
Comfort and Quality of Life at Home
A few small changes around the house make a big difference to an aging dog's comfort and confidence.
As joints stiffen and senses dull, home can quietly become harder to get around. The good news is that the fixes are simple, and they are some of the most rewarding changes I suggest to owners.
Give them traction. Slippery floorboards and tiles are hard on stiff joints, so lay textured rugs or non-slip runners along their usual routes.
Choose supportive bedding. A thick, supportive or orthopaedic bed cushions sore joints and muscles, and keeps older dogs off cold, hard floors.
Keep them warm. Senior dogs feel the cold more, so a warm, draught-free sleeping spot matters more than it used to.
Raise the bowl. A raised bowl takes the strain off the neck and shoulders of a stiff older dog at mealtimes.
Adjust the walks, don't drop them. Shorter, more frequent walks keep muscle and fitness up without overdoing it on a stiff day.
Clear the way. Clearing clutter and blocking off dangerous areas, such as steep stairs or a pool, keeps a dog whose sight, hearing, or balance is fading safe.
None of this costs much, and alongside monitoring their health day to day, it does a great deal for an older dog's quality of life.
Senior Dog FAQs
Why is my senior dog drinking more water than usual?
A senior dog drinking noticeably more water than usual is worth a vet check, not something to wait out. Increased thirst is one of the earliest signs of kidney disease, diabetes, or a hormonal condition, all of which become more common with age. Note roughly how much your dog drinks in a day, since that detail helps your vet narrow things down quickly.
Why is my senior dog losing weight but still eating?
Weight loss in a senior dog that is still eating well is a red flag worth investigating, because the body is using or losing more than it takes in. Common causes include kidney or liver disease, diabetes, dental pain, and digestive problems. A vet visit with bloodwork is the fastest way to find out which, so book one rather than waiting to see if the weight returns.
How do I know if my senior dog is in pain or suffering?
Signs of pain in a senior dog include reluctance to rise, jump, or climb stairs, slowing on walks, irritability, and changes in appetite, sleep, or toileting. Dogs hide pain well, so a shift in their habits is often the clearest sign. Any of these is worth a vet visit.
Why does my senior dog have bad breath?
Persistent bad breath in a senior dog usually points to dental disease, which is very common in older dogs and often painful. Less often, a strong or unusual smell can signal a kidney or other internal problem, so it is worth raising at the next check. A dental assessment will show whether your dog needs a clean, treatment, or simply closer monitoring.
Helping Your Senior Dog Thrive
A healthy, happy older age is a realistic goal, and you are the biggest part of it. Keep your dog lean and moving, feed for their life stage, and learn their normal so the quiet changes show early. Book the twice-yearly check, and the day something shifts, that is exactly when I want to hear from you.
Veterinarian & Vets Love Pets Partner
BVSc
Dr. Jane is an accomplished veterinarian with over 15 years of experience providing high-quality care to pets in Geelong, Australia. She obtained her Bachelor of Veterinary Science degree from the University of Queensland and is renowned for her compassionate approach to animal healthcare.
More articles from Dr Jane MillerReferences
- Keeping dogs lean extends lifespan (extra weight can shorten a dog's life by up to ~2 years JAVMA (Kealy et al., 2002)
- Dogs are senior ~7; senior pets benefit from twice-yearly exams + bloodwork AVMA; AAHA 2023 Senior Care Guidelines
