Selective breeding for exaggerated physical traits has created serious chronic health conditions in many popular dog breeds, representing a systemic welfare crisis driven by consumer demand.
Brachycephalic obstructive airway syndrome means many French Bulldogs and Pugs cannot breathe normally. They overheat easily, cannot exercise freely, and experience chronic respiratory distress. Many owners normalize labored breathing as breed-typical. Cavaliers with syringomyelia experience severe neuropathic pain from spinal fluid backed up into the skull — a condition described by neurologists as among the most painful known. These conditions are not accidents but the direct result of deliberate breeding selection driven by fashion and consumer demand.