Why some dogs snore loudly
Snoring — vets call it "stertor" — is just noisy airflow through a narrowed nose or throat. PetMD lists the usual suspects: sleeping position, allergies, obesity, and temporary congestion from an infection. In most dogs it is occasional and harmless. The key question is whether the snoring is new or getting worse.
The flat-faced factor (BOAS)
Flat-faced breeds are a special case. Bulldogs, Pugs, French Bulldogs, Boston Terriers, and Pekingese have short skulls that leave too much soft tissue — long palates, narrow nostrils, tight windpipes. When that anatomy actually impairs breathing, it is called brachycephalic obstructive airway syndrome (BOAS). These dogs snore by design, but the same anatomy puts them at risk in heat and during exercise.
When snoring is a red flag
PetMD is clear on the warning signs. See a vet if your dog has:
- A snore that is new, louder, or started suddenly
- Snoring while awake (not just asleep)
- Nasal discharge, sneezing, or low energy with the snoring
- Blue gums, collapse, or struggling to breathe — that is an emergency
In a non-flat-faced dog, a new snore usually means something is partially blocking the airway and is worth checking.
What helps at home
For expected snorers, small changes help:
- Keep them lean. Extra weight narrows the airway further — weight loss often quiets the snore.
- Adjust the bed. An elevated or side-sleeping position can open the airway.
- Avoid heat and overexertion. Flat-faced dogs overheat fast; keep them cool.
- Treat the cause. Allergies and infections need a vet; severe BOAS can be helped with surgery.
Frequently asked questions
Is snoring normal for my French Bulldog / Pug?
Yes — for flat-faced breeds, snoring is expected because of their shortened airways. It is still worth a vet conversation about BOAS, especially if your dog also gagging, tires easily, or overheats, since those signal the anatomy is limiting breathing.
My dog just started snoring — should I worry?
A new snore in a dog that never snored before deserves a look. It can be something minor like a cold, but it can also be a growing mass, a foreign object, or worsening anatomy. Pair it with discharge, lethargy, or awake-time snoring and the vet visit moves from "soon" to "now."
Can a dog snore from being overweight?
Absolutely. Extra fat around the neck and throat narrows the airway, and weight gain is one of the most common reasons a quiet sleeper starts snoring. Slimming down often reduces or removes the snoring entirely.
Should I wake a snoring dog?
Generally no — they are usually sleeping soundly. If the snore is new, very loud, or comes with gasping or struggling, that is different: briefly waking them to check breathing is reasonable, and a vet visit is the real answer.