Like the others have mostly said, just because it is smaller at this point that others its age doesn't mean it isn't perfectly healthy. Does she look ok? Have good shape? No loose skin? Chances are, she's doing just fine.

Quote Originally Posted by Big Gunns View Post
It's small for it's age, but not necessarily "underweight". If a Ball is not fed that much, it will grow slower but be perfectly healthy. So the answer to your question is yes....and no.
You're slippin' BG. Not a single third person reference in this post.