According to The Humane Society of the United States (HSUS), a puppy mill is abreeding facility where puppies are churned out in large numbers, with little regard for their health or wellbeing. The puppies are then sold through pet stores, classified ads, and even over the Internet. Mills also sell directly to consumers – often posing as "reputable breeders."They are only looking to make a profit, and commonly disregard the physical and emotional health of the dogs, resulting in puppies who can suffer from severe physical and emotional ailments, or even die.   But the puppies aren't the only victims. The breeding dogs at puppy mills live their entire lives in cages, without ever seeing a treat or a toy, going for a walk, or becoming part of a family. Most puppy mills are legal, so the best way to stop them is for dog lovers to stop supporting them. To avoid supporting a puppy mill, The HSUS suggests never buying a puppy from a pet store, over the Internet, or from any facility you have not visited in person.