The Kennel Club has created three new YouTube films to raise awareness of puppy farming to help potential owners buy a new dog.
These films, available on the Crufts YouTube channel, have been released as part of Puppy Awareness Week, which ran until September 15th.
Many dogs bought from puppy farms need pet meds in later life and suffer from behavioural problems because of their poor start in life.
Caroline Kisko, Kennel Club secretary, said: "It is incredibly sad but not surprising that we have such a huge rescue dog population, when so many people jump into dog ownership without giving it the thought it deserves.
"Many people who aren't really cut out for dog ownership rush in and buy a puppy."
She added that other people choose the wrong breed for their lifestyle and are unable to provide for its needs.
Kennel Club research found that one in five dogs are purchased from puppy farms, while the same amount of people buy dogs purely based on their looks.