There is no steadfast rule or official age that a Yorkie is considered to be a
senior. However, for toy breed dogs, the age will be some time between 8 and 10 years old. This is the equivalent of 48 to 56 humans years... and one must keep in mind that though this can be put out as a comparison, canines are built differently with (unfortunately) much shorter life spans than humans.
When coming up to the 8 year mark, one must evaluate each dog separately, as each dog will show signs of aging differently. This may seem too young for many Yorkshire Terriers; and it is true that most 8, 9 and even 10 year old dogs will be just as active and sharp as their younger counterparts. Once the dog passed the 10 year mark, changes will start to become more apparent.
The most apparent sign that will tell you that your dog is aging, is when he or she slows down. You will notice that your dog does not run as fast as they once did, you will see that your Yorkie is slow to rise from a laying position, your dog may hesitate to jump down from the bed, etc.
There are several things that you can do to ensure the safety and health of your senior Yorkie. How to you best care for an older Yorkshire Terrier?
Obtain steps or ramps
for any furniture that your Yorkie used to jump up and down from. This is usually the sofa and your bed. Steps are such a great help and will help to protect your dog's hips and joints by eliminating impact.
Switch over from adult food to senior dog food. Each type of dog food is different for each phase of a dog's life. Your older Yorkie digests food differently and is in need of extra calcium and nutrients that are not available in their regular dog food. Obtain the highest quality possible.
Veterinarian visits should increase at this point. Early detection of medical issues is the best method for good recovery. Your older Yorkie should have regular checkups twice per year, in addition to any visits for unexpected health issues.