Understanding the welfare harms of puppy mills and how to support ethical sourcing of companion dogs.
Puppy mills cause suffering at two levels: to the breeding dogs condemned to life in cramped, barren conditions without adequate socialization or veterinary care, and to the puppies themselves who miss critical early socialization windows. These early deficits frequently result in fearful, anxious, or poorly socialized adult dogs, creating a welfare burden that shifts onto new owners and ultimately onto the dog. Consumer demand drives the puppy mill industry, and informed purchasing decisions are one of the most direct levers individuals have to reduce this harm.