100 years of selective breeding. Sadly, this is why purebred dogs have so many health issues. Just go get a mutt from the shelter! As long as there are homeless animals, there's no such thing as a "reputable" breeder.
Canine hip dysplasia is a very common degenerative joint disease seen in dogs. There are many misconceptions surrounding it. There are many things that we know about hip dysplasia in dogs, there are also many things we