When an older dog starts staring at walls, seems lost in its own home or forgets commands it has known for years, many owners put it down to old age. But vets who specialise in older animals warn that these can be signs of canine cognitive dysfunction syndrome, a condition with similarities to dementia in people.
The signs
Disorientation. The dog wanders aimlessly, stares into space, gets stuck behind furniture or struggles to find its bed or water bowl.
Forgetting routines. It may have accidents indoors, forget walk times or stop responding to familiar cues.
Sleep changes. It sleeps more during the day and is restless, or even vocal, at night.
Less interaction. A sociable dog may become distant, lose interest in play or seem indifferent to affection — or, conversely, become clingy and anxious.
Changes in activity. Some dogs pace repetitively or become less active overall.
Not just old age
These changes should not be dismissed as inevitable. Similar symptoms can be caused by other problems, such as thyroid or kidney disease, loss of sight or hearing, pain from arthritis, or other neurological conditions. A vet check is essential.
Diagnosis
The vet will ask about the dog’s history and behaviour, carry out a physical examination and may order blood tests or imaging to rule out other causes. If none is found, the pattern of symptoms points towards cognitive dysfunction.
How to help
There is no cure, but early action can slow the decline and improve quality of life.
- Keep routines steady: regular times for meals, walks and sleep reduce confusion.
- Keep the mind active: puzzle toys, sniffing games and short, gentle training sessions.
- Diet: some senior diets contain antioxidants and omega-3 fatty acids that may support brain health. Ask your vet.
- Keep the home familiar: avoid moving furniture, and use night lights if the dog is confused in the dark.
- Medication: in some cases, vets may prescribe treatments that can help.
- Gentle exercise: short, regular walks remain important.
When to see the vet
Book an appointment if you notice any of these signs, especially if they appear suddenly or get worse. Many owners are surprised by how much a dog can improve with the right support — and recognising the condition also helps families be more patient and understanding with an ageing companion.
