[yorkiemini]

The standard for the breed is 7 pounds are less - so there are no teacups of minis or any of those names. Generally health is genetics and breeding. That being said the very small Yorkies are often more fragile just related to their size.

My Cali is small - 3 pounds 23 ounces - healthy as a horse. Does agility and obedience. Do I watch her more carefully -- yes, especially around bigger dogs and children. She uses stairs to get on and off the bed - not allowed to jump.

Like I said standard is 7 pounds or less, however there are some great 10 and 12 pound Yorkies around.

So health is a breeding and genetic issue. So choose the breeder carefully to get a healthy dog. My Cali doesn't know she is small -- she has got that Terrier personality!