Aging Dog: When Your Pup Turns Grey

Physical and Mental Signs that Your Dog is Aging

Irish Setter aging with a sad face.
When pets start to get a grey muzzle.

Everybody ages, including your aging dog. That adorable little pup that grew into your constant companion may be showing signs of aging, both physical and mental.

Different breeds and sizes of dogs age at different rates. A large breed like a Great Dane is considered senior at around six years old. A small dog, like a Chihuahua, for example, may not be considered old until it is seven to ten years old.

The more tuned-in you are to the typical signs, the sooner you can help your dog age gracefully.

Physical signs of aging dog

Cloudiness in eyes or difficulty seeing

Cloudiness in the eyes of an aging dog.
Thin layer of cloudiness.

Eye cloudiness (nuclear sclerosis) can happen so gradually that you might not notice it right away. While it’s a fairly common occurrence in senior dogs and doesn’t affect vision, it may also be a sign of cataracts or other eye diseases, most of which are easily treatable.

Your dog may also start bumping into things or have trouble locating a toy on the floor or other familiar objects. You may notice it is more difficult for them to find their way around in dimmed light and the dark. This could signal vision loss.

Horrible breath

Frankie yelling with his horrible breath.

While doggie breath isn’t uncommon at any age, if your dog seems to suddenly have awful breath, it could indicate gum disease, tooth decay, or infection.

The immune system weakens as dogs age and they are not able to fight off infections as easily as they did when they were younger. Along with a good dental cleaning, your vet may decide to do blood work to rule out infection.

Slowing down or difficulty getting around

Aging Beagle slowly walking stiffly
Dogs start to get more ache in their joints.

An older dog may have trouble with stairs, jumping into the car, or just getting up after a nap. You might notice weakness in their back legs.

While we all slow down as we age, your dog’s mobility issues could be caused by arthritis or another degenerative disease.

Along with any medication or supplements your vet recommends, you will have to adjust your dog’s exercise regimen to slower and shorter walks or a new exercise routine. Swimming, for example, is gentle on the body and many dogs love it.

New lumps and bumps

Lypomas on an aging dog.
Lipomas are squishy.

Some dogs are prone to harmless fatty lipomas, but these lumps under the skin are more common as dogs age. However, any new lump should be checked by a veterinarian to rule out a malignant tumor.

A change in weight

Dog looking concerned.
“I haven’t been feeling great lately.”

It’s not surprising that older, less active dogs sometimes gain weight and you may have to adjust your dog’s diet and exercise to maintain a healthy weight. However, you should also pay attention if your senior dog loses weight.

This could be the result of reduced muscle mass, which is common in older dogs, or it might be caused by reduced appetite, poor absorption of nutrients, or a digestive illness. If your dog loses more than 10 percent of their body weight in a few months, or even in a year, consult your vet.

Incontinence or difficulty “going:”

Aging Cocker Spaniel that has urinated on the carpet.
May need to go out to potty more often.

If your dog suddenly seems to forget their houset raining or seems to strain when urinating, these could be signs of a urinary tract infection or kidney disease.

However, incontinence is not unusual in elderly dogs and there are medications that can help.


Behavioral and mental signs of aging dog

Aging Frankie laying around.
Frankie at the age of 14.

Physical changes aren’t the only differences you may notice in your dog as they age. Changes in behavior can signal an underlying physical problem or may be a normal sign of aging.

If your pup has suddenly turned into a grump, they may be in pain caused by arthritis or be experiencing some other physical discomfort. Or your high-energy companion may be sleeping hours a day.

Older dogs need more sleep, just let him nap.

Signs of canine cognitive disorder.

However, changes in behavior may also be the result of canine cognitive dysfunction syndrome (CCDS). According to a study at the National Center for Biotechnology Information, CCDS affects 14-35 percent of dogs over eight years old. A dementia similar to Alzheimer’s in humans, CCDS can bring about pronounced changes in your dog’s everyday behavior:

  • Fear of familiar people or objects.
  • Changes in the sleeping-waking cycle, including restlessness or pacing at night.
  • Increased barking and vocalization.
  • Repetitive or compulsive behaviors.
  • Forgetting commands and cues that they once knew.
  • House soiling.
  • Increased anxiety.
  • Confusion and disorientation.
  • Marked change in activity level.

Your vet will be able to make a diagnosis by asking you simple questions during the appointment. While there is no cure for CCDS, there are some new medications and therapeutic options your vet can discuss with you.

How can you help your aging dog?

The single most important thing you can do is check with your vet if you see any of these physical or mental changes. The vet can determine the underlying medical causes and prescribe treatments.

He can also help you make some decisions about your dog’s care going forward: changes in diet and exercise, changes you can make around the house, or in the daily routine.


Aging Irish Setter Sleeping.

Quality of Life

Pet owners’ greatest fear is having to make a decision about their pets’ end of life, and that fear may make an owner unwilling to visit the vet. They may also not be educated about the signs of aging and take a “wait-and-see” attitude.

I have seen this first hand and it is heart wrenching. One visit to the vet, the dog is fine, alert, and knows its owner. A month later, the dog is snapping at the owner and family. The owner could barely bring his dog into the vet office because of it snapping at everybody. They decided to euthanize him that day. It really got to me how fast CCDS happened in such a short time.

The cost of care is also an issue for many pet owners. If they are prescribed medication, therapy, or both, it is for the remainder of the dog’s life.


Our dogs give us many years of love and loyalty and it’s only natural to want to make their senior years as comfortable and enjoyable as possible. Aging is a normal part of life and with some vigilance and attention to your dog’s health, these can truly be “golden years.”

Aging dog wincing at the camera.

” My face may be white, but my heart is pure gold. There is no shame in growing old.”


My Chloe laying outside soaking up the sun.

My baby Chloe is 11 1/2 years old. I have seen her slowing down the past couple years. In her young age, she could walk 5 miles in any weather. (Between 400 – 800 F) Now she can only make it 2 1/2 miles and the weather can’t be over 700 .

She takes more naps than usual. (I love when she is snoring and dreaming.) She still has a great body shape because I have decreased her feeding since she’s less active.

She has been getting a couple lumps (lipomas) and moles around her body. I keep these in check to make sure they are not rapidly growing (sign of cancer). She is still a happy girl that loves her walks and treats. She hasn’t had any accidents in the house and knows when she needs to go. All we can do is keep our pup healthy physically and mentally.


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