If your puppy is having health problems, there could be many explanations.  Many breeds are predisposed to genetic defects and conditions.  You can find a comprehensive list of dog breeds and their genetic problems HERE.

Another explanation may be the very nature that your puppy was raised.  To better understand some of the conditions common to commercially bred puppies, CLICK HERE.

There are many responsibilities that face responsible breeders today.  To better understand how responsible breeders are working to produce healthy puppies, CLICK HERE.