Brachycephalic dog breeds Most affected brachycephalic breeds If you have any of these breeds: English Bulldog Boston Terrier French Bulldog Pekingese Pug Persian Cat Lhasa Apso Shar Pei You have probably said at some point, ‘My dog sounds like a pig’ or ‘My dog sounds like a little piggy’. Let me tell you that this is not cute or normal, but rather that your dog is a brachycephalic dog. What is brachycephalic syndrome and why does it affect so many popular breeds? Brachyceph