Selective breeding for extreme physical traits in pedigree dogs has produced widespread heritable health and welfare problems that require reform of breed standards and breeding practices.
Conformation-related welfare problems in pedigree dogs represent one of the most systematic and preventable welfare failures in companion animal keeping. Unlike accidental disease, these conditions are deliberately selected for through breeding standards that prioritise appearance over health. A French Bulldog purchased because of its flat face is suffering from the same feature that makes it commercially desirable. The animals cannot consent to the selective pressures that shaped their anatomy. Reform requires changes at multiple levels: breed standard revision to exclude extreme conformations, veterinary certification requirements before breeding, consumer education to shift purchasing away from high-risk breeds, and consideration of cross-breeding to restore health while maintaining desired temperamental traits.