Dog snoring may be funny or even annoying and could disrupt your own sleep at night; but it can actually be an indication for underlying medical issues.
Snoring and congestion may indicate an anatomical fault, obesity, allergies, foreign objects, respiratory infections, or even tumors. Temporary issues include poor air quality or an odd sleeping position.
Some breeds are no stranger to noisy breathing. This is especially true for snub-nosed (brachycephalic) breeds such as the Pug, (French) Bulldog, Boston Terrier, Cavalier King Charles Spaniel, Shih Tzu, Boxer, and Mastiff.
An abrupt change in breathing habits would usually be accompanied by other signs. You may notice your dog is also breathing faster and is less able to exercise.
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