As a dog ages, a pet parent expects that their companion will have decreased energy and diminished ability to run and jump. But finding out that your dog can also have mental "senior moments" comes as a surprise for many people. Dog dementia, also known as canine cognitive dysfunction (CCD), has become a common problem as advances in pet healthcare have resulted in improved longevity.
A Dog's Aging Brain
According to the Journal of Veterinary Behavior, the same pathological changes are found in the brains of dogs with canine cognitive dysfunction as are found in human Alzheimer's and dementia patients. Although Alzheimer's is a widely recognized disease, CCD receives little media attention and can often be overlooked during senior veterinary visits. Unfortunately, many people attribute their dog's behavior changes to the normal aging process and fail to mention newly developing problems to their veterinarian. The changes associated with dog dementia are subtle, and the gradual variations in a dog's behavior can be challenging to notice for even the most attentive owner.
A familiarity with the signs of dog dementia will help you recognize any problems in the early stages, initiate a conversation with your vet, and be proactive in your dog's care. It is important for pet parents to become familiar with the various pet aging signs.

Signs of Dog Dementia
To look out for canine cognitive dysfunction, remember to check your dog's "DISH":
Disorientation
- Paces
- Wanders aimlessly
- Becomes stuck on the wrong side of the door or behind furniture
- Seems lost in the yard or forgets the purpose of going outside
- Fails to recognize familiar people or dogs
- Reduced responsiveness to name or verbal commands
Interaction with Family Members
- Seeks less attention (petting, belly rubs, play)
- Less enthusiastic to greet people
- No longer greets family upon arriving home
Sleep and Activity
- Sleeps more hours per day, especially during the daytime
- Sleeps less throughout the night
- Reduced daily activity
- Lack of interest in his surroundings
- Restlessness, pacing or circling at sunset (sundowning)
- Vocalization at night (barking or howling)
House Training
- Urinates or defecates indoors
- Urinates or defecates indoors soon after having been outside
- Failure to indicate need to go outside
- Accidents occur in front of his pet parents
Altered activity and anxiety are also signs of cat dementia if you're looking to add a couple of additional A's to the acronym: DISHAA.
Other Considerations
Not every sign of DISH indicates dog dementia. Other medical conditions prevalent in geriatric dogs can manifest in a similar way. Older dogs often have impaired vision and hearing, for example, which can lead to confusion and diminished interaction with the family. Senior dog issues, such as diabetes mellitus, Cushing's disease, kidney disease and incontinence, can all lead to urination in the house. A physical exam, blood pressure measurement, urinalysis, blood tests, and a thorough medical history will help your vet rule out health problems with similar symptoms to CCD.
No matter how he changes, no decline in your dog's abilities should impair your human-animal bond. Being aware of aging problems will enable everyone to make adjustments to include your dog in activities and make him feel loved. If your vet has ruled out other problems and determined behavioral changes to be consistent with canine cognitive dysfunction, there are steps you can take to make your dog's (and your) life easier.
