Pugs are prone to eye problems, the most common are eye ulcers, and because of their short muzzle, they are more at risk of scratching their eyes. Brachycephalic breeds like bulldogs and pugs are known to die in the heat and humidity because they cannot breathe and gasp properly like other dogs. And there you have it, brachycephalic dogs (which include pugs, bulldogs, French bulldogs and shih tzus) are an anatomical disaster. All structures that should form the nose have been crushed.
The only time these dogs do not have any degree of respiratory distress is when they are intubated under anesthesia.
