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Dog Breathing Problems: Signs, Causes, and What's an Emergency

Quick Answer: Act Promptly

Breathing difficulty is always serious in dogs. Open-mouth breathing in a resting dog, blue or grey gums, or labored chest movement warrants an emergency vet visit without delay.

Not sure how serious this is?Use the Symptom Checker →

Dogs can compensate for respiratory problems up to a point, then deteriorate rapidly. By the time many dogs show obvious breathing difficulty, the problem is already severe.

Most Common Causes

Brachycephalic obstructive airway syndrome (BOAS) (common)

Flat-faced breeds (Bulldogs, Pugs, Frenchies) have anatomically narrow airways. Noisy breathing, exercise intolerance, overheating risk.

Kennel cough or respiratory infection (common)

Coughing with normal respiratory rate. Usually manageable but can progress to pneumonia.

Pneumonia (moderate)

Rapid, labored breathing, fever, wet cough. Bacterial or aspiration origin.

Pleural effusion (fluid around lungs) (moderate)

Fluid compressing the lungs. Rapid shallow breathing, reluctance to lie down.

Congestive heart failure (moderate)

Fluid in the lungs, coughing, exercise intolerance, blue gums in advanced cases.

Foreign body airway obstruction (rare)

Sudden choking, gagging, pawing at mouth, distress. True emergency.

Wait, Act, or Emergency?

You Can Watch and Wait If:

  • Known brachycephalic dog breathing noisily after exercise -- rest, cool environment

Call or Visit Your Vet If:

  • Breathing faster than normal at rest
  • Chest moving more visibly than usual with each breath
  • Any new cough with labored breathing

Go to Emergency Vet Immediately If:

  • Open-mouth breathing in a resting dog
  • Blue, grey, or pale gums or tongue
  • Choking, pawing at mouth, unable to breathe
  • Dog suddenly unable to lie down comfortably
  • After drowning or near-drowning

Note for American Bulldog Owners

American Bulldogs can have varying degrees of brachycephalic features. Dogs from responsible breeders with health-tested lines may have fewer airway issues. In heat or high humidity, monitor breathing carefully and avoid heavy exercise.

American Bulldog Health Guide
Still not sure what to do?

Our interactive checker walks you through symptoms, severity, and duration -- and gives you a clear go/wait/monitor answer.

Open Symptom Checker

Frequently Asked Questions

What does normal dog breathing look like?
A resting dog breathes 15-30 times per minute. Each breath should be effortless. You should barely see the chest move. Panting (mouth open, tongue out) is normal after exercise or in heat.
My dog is breathing fast while sleeping. Is this normal?
Slightly increased breathing during REM sleep can be normal (dreaming). Count your dog's resting breaths per minute (not during a dream). More than 30 breaths per minute consistently warrants a vet visit.
What causes blue gums in dogs?
Blue or grey gums (cyanosis) indicate the blood is not carrying enough oxygen. This is a true emergency. Go to an emergency vet immediately.

Is Your Dog an American Bulldog?

American Bulldogs have breed-specific health vulnerabilities. ABRA-registered dogs from health-tested lines have better documented health histories.

Search American Bulldog PedigreesABRA Registry