Before you consider buying a puppy, it is important that you understand the differences in their origins. Puppys can be breed by a responsible breeder; they can come from “backyard breeders” who breed their own pet (intentionally or by accident), or they can come from puppy mills. There are, of course, some places that straddle the lines bewtween these categories. You need to do your research before you decide to buy a puppy. It is important that the purchase you make which will have an impact on your life for the next dozen or more years, is the right purchase. You want to do all you can to be sure that your puppy is healthy and well-balanced emotionally. Of course, no one can absolutely guarantee these things but some breeders put in more work to try to ensure health and stability than do others.
We recommend you start your search on our Education site at: http://westieedumi.com/puppymills. This site will give you information and suggest other sites to visit for more research.