And while there are things that big dogs do that little dogs can't (like ... In this video from @littlerupert, we can see a black Teacup Shih-Tzu letting out what his human describes as a "big ...

like many small dogs, can have some health problems, such as epilepsy, gastric torsion, and cataracts. Teacup Shih Tzus look like tiny lions with their long, beautiful fur and proud walk.