The nasal passages of an asthma-like Pug are much shorter than those of a normal dog, so the breathing will be much louder. In cases where a Pug is too hot or strenuously exercising, it will pant all the time. It is generally normal for a Pug to vomit, lose his appetite, or have poor spirits if he does not do so. Owners should also be aware that because of their special structure, pugs are also more susceptible to bronchitis, nasal polyps, and other symptoms than ordinary dogs.
