A healthy Yorkshire Terrier should exhibit certain physical and behavioral characteristics that indicate that they are in good health. Here are some signs to look for:

Physical Signs:

* Coat: A healthy Yorkie’s coat should be shiny, soft and free of tangles or mats.
* Weight: A healthy weight range for a Yorkie is 4-7 pounds. Overweight or underweight dogs can be a sign of underlying health issues.
* Eyes: Clear, bright eyes with no redness, discharge, or swelling.
* Ears: Clean, with no odor or discharge. Yorkies are prone to ear infections, so it’s important to keep their ears clean and dry.
* Nose: A moist, cool nose is a sign of good health. A dry or hot nose may indicate a fever or other health problem.
* Teeth: Healthy teeth should be clean and white with no signs of tartar buildup or gum disease.
* Energy level: A healthy Yorkie should have a good level of energy and should be active and playful.
* Breathing: Normal breathing is important for good health. Yorkies should be breathing comfortably and easily, with no signs of wheezing, coughing, or labored breathing.

Behavioral Signs:

* Appetite: A healthy Yorkie should have a good appetite and should be eager to eat their meals.
* Thirst: A healthy Yorkie should have a normal thirst and should drink water regularly.
* Potty habits: Regular and consistent potty habits are an important sign of good health. Yorkies should be able to hold their bladder and bowel movements for appropriate periods of time.
* Sleep: A healthy Yorkie should be able to sleep comfortably and soundly, without frequent awakenings.
* Playfulness: A healthy Yorkie should be playful and active, enjoying toys and games.
* Temperament: A healthy Yorkie should have a friendly, confident, and stable temperament.

It’s important to remember that every Yorkie is unique, and there may be some variations in what is considered “normal” for each dog. However, if you notice any sudden changes in your dog’s behavior or physical condition, it’s best to consult with your veterinarian. They can help you determine whether there is an underlying health issue that needs to be addressed.

In summary, by keeping an eye out for the physical and behavioral signs of good health, you can help ensure that your Yorkshire Terrier stays healthy and happy.