Certain dog breeds face dramatically elevated cancer risks due to genetic bottlenecks and selective breeding practices, creating welfare burdens that often shorten lifespans and require painful treatments.
The epidemic of cancer in certain breeds represents a welfare crisis created by selective breeding practices that prioritise appearance over health. Dogs with breed-specific cancers frequently face months of painful illness, invasive treatments, and premature death. Even with treatment, survival times for conditions like osteosarcoma in giant breeds are often measured in months. Owners face significant emotional and financial burden. The welfare solution requires reform at the breed standard level: prioritising health traits, encouraging genetic diversity, mandating health testing before breeding, and moving away from closed studbooks that entrench deleterious mutations. Individual welfare for cancer-affected dogs requires aggressive pain management, honest quality-of-life assessment, and access to palliative care when curative treatment is not viable.