Selective breeding for extreme physical traits has created serious welfare problems in many popular dog breeds.
Extreme selective breeding for exaggerated physical traits causes lifelong welfare problems for affected dogs. Brachycephalic dogs experience chronic respiratory distress from compressed airways requiring surgery in many cases. Skin folds cause dermatitis. Large heads and narrow pelvises necessitate C-sections. Spinal abnormalities are common in screw-tailed breeds. Despite these problems, demand continues driven by social media promotion of cute puppy images that normalise abnormal anatomy.