Pugs have a unique skull shape, which can cause breathing problems. This causes knock-on effects in the dog's respiratory system, causing chronic discomfort and, at times, life-threatening distress. Here are some possible causes of pug breathing problems. If you're unsure, contact a veterinary surgeon or a veterinary nutritionist. Brachycephalic causes breathing problems in … [Read more...] about Causes of Pug Breathing Problems