Breeding dogs with flat faces / short muzzles (Pugs, Bulldogs and French Bulldogs) primarily for their looks has led to serious health problems and suffering in a substantial proportion of these dogs.
Open letter from the Brachycephalic Working Group
![Open letter from the Brachycephalic Working Group](https://www.woofadvisor.com/blog/wp-content/uploads/2018/01/BWG.png)