9. Moves at a slower pace
Much like standing up and running, older dogs typically just have a harder time moving around in general. Whether it's to go outside for a bathroom break or coming when you call, arthritis, issues with joints and bones, and other health problems may be plaguing your pet.
10. Bad breath
Shih Tzus don't exactly have the best breath. However, as they age, breath may become even worse. It is important to always practice proper dental care to avoid dental disease in your pet. Broken teeth, pain while eating, or increased bad breath all warrant a trip to the vet.
