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At what age is a dog considered a senior?

At what age is a dog considered a senior?

You know that the needs of your pet change as they age, but when is a dog considered a senior? Here, our Mamaroneck vets explain how to spot signs of aging in dogs, and the care that older dogs need to achieve optimal good health.

The Dog Aging Process

You've probably heard that one human year equals seven dog years—but it's not quite that simple. That's because individual dog breeds age at different paces than others. As a rule, smaller dogs do not age as quickly as large or giant breed dogs. So, how old is a senior dog?

The aging process for dogs looks more like this:

  • Small breeds are considered senior dogs around 10-12 years old. 
  • Medium breeds are considered senior dogs around 8-9 years old.
  • Large and giant breeds are considered senior dogs around 6-7 years old.

Signs of Aging in Dogs

As your dog ages, you are likely to notice both physical and mental changes in your pup. While some of these changes are the natural progression of aging (such as grey hair around their muzzle) and do not require any specific vet care, other changes may need veterinary attention to ensure your pup maintains their comfort into their old age.

Some signs that your dog is getting older include:

  • Weight gain or loss
  • White hairs on the muzzle and face
  • Vision and/or hearing loss
  • Sleeping more or difficulty sleeping
  • Reduction of mental acuity 
  • Gum disease or tooth loss
  • Loss of muscle tone
  • Arthritis and joint issues
  • Reduced liver, kidney, and heart function

Caring For Your Senior Dog

There are several things you can do to help your dog maintain their comfort and well-being as they age.

Veterinary Care for Older Dogs

The first step to caring for a senior pup is to prioritize regular vet visits. By taking your senior dog for routine wellness exams, you're providing your vet with an opportunity to screen your pet for any developing conditions that are common in old age. Spotting these conditions early means that treatment can begin in the earliest stages, when it's most effective.

Proactive health care for your senior dog can also help to prevent your older dog from having to deal with unnecessary discomfort. Your veterinarian can assess your senior dog's nutrition and mobility and make recommendations for diet or exercise adjustments that may benefit your four-legged friend. 


As your dog ages, their nutrition needs will likely change. As senior dogs slow down and exercise less, they become more prone to weight gain. Excess weight gain can cause other health issues, including joint pain and cardiovascular conditions. Speak to your vet about adjusting your dog's daily calorie intake or switching to a food that is specifically formulated for weight loss. 

There is also a range of prescription diets and supplements available for senior dogs that are targeted to the various health conditions that senior dogs experience. Speak with your vet to see if they recommend a specific diet or supplement for your pup. 

Besides the physical benefits of a good diet, proper nutrition may be able to help your dog maintain their cognitive function as they age. Dogs, just like humans, can suffer from dementia or Alzheimers-like conditions. Feeding your dog that is high in omega-3 fatty acids, along with providing them with proper exercise, may help them maintain mental alertness.

Exercise - Physical & Mental 

As your dog ages, it is important that they keep up with a regular schedule of physical activity. Regular exercise helps dogs maintain a healthy weight and keeps their joints healthy. However, you may have to adjust the forms of exercise you are providing for your pup. For example, if you notice your dog is having difficulty with the long walks they once loved, try taking your dog for more frequent walks that are shorter in duration. 

Along with regular physical exercise, it is important that senior dogs receive mental stimulation too. It's never too late to teach your pup a new trick or bring home a new puzzle. There are lots of options for problem-solving activities for dogs. One example is a puzzle feeder that makes your dog work to figure out how to get their kibble. 

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

Our vets are passionate about helping older pets achieve ongoing good health and comfortable mobility as they continue to age. Contact our Mamaroneck vets today to book an exam for your senior pet.

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