Genetic diseases in purebred dogs cause immense preventable suffering. Breeding reform through health testing, open stud books, and breed standard revision can dramatically reduce inherited disease burden.
Inherited disease in dogs is the most ethically concerning aspect of purebred dog production because it is knowingly perpetuated by breeding practices that prioritize appearance and registry purity over health. A Cavalier King Charles Spaniel bred from untested parents has an extremely high probability of developing painful heart disease and neurological conditions that will require expensive treatment and cause years of suffering. This suffering is not accidental but predictable and preventable. The welfare imperative for health-tested breeding, breed standard reform to eliminate conformations that cause disease, and open registries that allow genetic diversity influx is clear and urgent.