This is a problem with blood clotting that can have serious implications. AKC registration IS NOT an indication of quality. It simply means that both parents were registered with the American Kennel Club. The Golden Retriever Club of America or GRCA is the parent club of the breed in this country. The parent club looks out for the breed, working to make sure that Goldens remain the wonderful dogs that responsible breeders have worked to develop over the years.
Puppies are little mysteries.
What you can see is what you get. At times an adult Golden will find itself in need of a new home. Enter the dedicated Golden lovers of rescue. These folks work tirelessly to rehabilitate and provide temporary care for unwanted or abandoned Goldens. So if a puppy is not your first choice and an adult Golden appeals to you, you can look for the Golden rescue near you and apply to adopt a rescue Golden.