Selective breeding for extreme physical traits in dogs has created widespread suffering from inherited diseases, with brachycephalic breeds facing particularly severe welfare challenges.
The suffering caused by extreme selective breeding in dogs is perhaps the most widespread yet avoidable form of companion animal welfare harm. Millions of dogs live with chronic breathing difficulties, joint pain, neurological disease, and other inherited conditions that cause daily suffering. These conditions are predictable consequences of deliberate breeding choices for appearance over health. Breed standard reform, health testing requirements, and consumer education are all needed to change breeding practices.