Airway obstruction is prevalent in Bulldog Shih Tzus that inherit the brachycephalic characteristics from the Bulldog breed. The obstruction and issue respiration are worst once the Puppy is active and in warm temperature. Every combine has its have distinctive characteristics and individuality qualities, so you'll want to do your investigation https://www.frenchiedoodle.com/french-bulldog-mix-with-shih-tzu