Health Problems of Flat-Faced (Brachycephalic) Dog Breeds Brachycephalic dog breeds have flat faces and short muzzles. The term comes from two Greek words meaning 'short' and 'head'.They may have a bottom jaw which sticks out disproportionately to the top jaw. Here is a list of Brachycephalic Dog Breeds  French bulldogs English bulldogs Boston terriers Pugs... Continue Reading →