Has your old dog started staring blankly at the wall, getting “stuck” behind the couch, or pacing the hallway at 2am? It’s easy to put these little quirks down to age — but sometimes they’re the early signs of canine cognitive dysfunction, often called doggy dementia.
It’s far more common than many owners realise, and because the changes creep in slowly, plenty of cases go unnoticed for months. Spotting it early gives you the best shot at slowing it down and keeping your senior mate comfortable. Here’s what every Aussie dog owner should know.
What is canine cognitive dysfunction?
Canine cognitive dysfunction (CCD) is an age-related decline in brain function, with changes in the ageing brain that are broadly similar to those seen in Alzheimer’s disease in people. It affects an estimated 14 to 35 per cent of dogs over eight years of age, and the risk climbs steadily as a dog gets older.
Despite how common it is, research suggests CCD is widely under-diagnosed — partly because the signs are easy to mistake for “just getting old”, and partly because many owners don’t think to mention subtle behaviour changes to their vet. That’s a shame, because the earlier it’s picked up, the more can be done to help.
The warning signs: remember DISHA
Vets often use the handy acronym DISHA to describe the main signs of doggy dementia. If you notice several of these in an older dog, it’s worth a conversation with your vet:
- D — Disorientation: getting lost in familiar spots, staring into space, or standing on the hinge side of a door waiting for it to open
- I — Interaction changes: becoming more clingy or, on the flip side, more withdrawn and less interested in cuddles and family
- S — Sleep–wake changes: sleeping more during the day, then pacing, whining or restlessness through the night
- H — House soiling: toileting indoors after years of being reliably house-trained
- A — Activity and anxiety changes: aimless wandering or pacing, repetitive behaviours, or new clinginess and anxiety
Importantly, these signs can also point to other health problems — pain, failing eyesight or hearing, urinary issues, or other illness. That’s exactly why a vet check matters before assuming it’s dementia.
How you can help at home
There’s no cure for CCD, but the right routine and a few thoughtful changes can ease anxiety, support brain health and slow the slide. Think of it as making life as predictable and low-stress as possible.
Keep routines steady
Dogs with cognitive decline find comfort in predictability. Try to keep meals, walks and bedtime at consistent times, and avoid rearranging furniture or changing their layout. A calm, familiar environment helps reduce the confusion and anxiety that come with the condition.
Feed the brain
Diet can play a genuine role. Some veterinary diets and supplements are formulated to support ageing brains, often using antioxidants, omega-3 fatty acids and other targeted ingredients. Don’t start anything new off your own bat, though — ask your vet which option is appropriate, as the right choice depends on your individual dog.
Gentle mental and physical activity
Keeping the brain busy helps. Short, easy training refreshers, sniffing games, food-puzzle toys and gentle daily walks all give the mind a workout without overwhelming your dog. Keep sessions brief, positive and well within their comfort zone.
Make the home easy to navigate
Small tweaks reduce stress and accidents. Use night lights to help a disoriented dog find their way after dark, block off hazards like pool fences and staircases, keep food and water in the same easy-to-reach spots, and pop down extra toilet breaks or pee pads if needed.
When to see your vet
If you’re noticing DISHA-style changes, book a check-up. Your vet will work to rule out other conditions and can confirm whether CCD is the likely cause. There are management options — including a prescription medication that is specifically registered to help dogs with cognitive dysfunction — that your vet can discuss with you. Please consult a licensed veterinarian for diagnosis or treatment specific to your pet, and never give your dog human medications, as many are toxic to them.
The bottom line
Doggy dementia can be heartbreaking to watch, but it isn’t something you have to face blindly. By learning the DISHA signs, keeping life calm and predictable, and partnering with your vet early, you can help your senior dog stay calmer, safer and more comfortable in their golden years. If your old friend seems a little “lost” lately, it’s worth paying attention — the sooner you act, the more you can do.
