7 Signs Your Dog Is Struggling to Breathe (and What to Do)

Dogs rarely announce a breathing problem. There is no whimper, no limp, nothing obvious to point at. What usually happens is quieter: the chest moves a little more than it used to, a cough shows up that wasn’t there last month, or your dog picks an odd spot on the floor and won’t settle anywhere else.

Because the changes are gradual, they are easy to explain away. Below are seven things worth watching for, roughly in order from subtle to serious, along with which ones mean call your vet and which ones mean go now.

1. Their resting breathing rate has gone up

This is the most useful number a dog owner can track, and almost nobody tracks it.

A normal breathing rate for a dog resting calmly or sleeping is 15 to 30 breaths per minute, according to VCA Animal Hospitals. To count it, watch your dog’s chest while they are asleep or fully settled. One breath is the chest moving out and back in once. Count for 30 seconds and double it.

Rates that stay consistently above 30 breaths per minute at rest are considered abnormal. Repeat the count a few times while your dog is resting. If it remains consistently above 30 breaths per minute, contact your veterinarian as soon as possible. Panting throws the count off, so only count when your dog is calm and cool.

It helps to know your dog’s usual number while they are healthy. A dog who normally sleeps at 18 breaths per minute and is now sitting at 32 tells you something a single reading never could.

2. Their breathing sounds different

Vets split noisy breathing into two rough categories, and both are worth reporting.

Stertor is the low, snoring or snuffling sound made by soft tissue vibrating, usually somewhere around the throat. Stridor is higher pitched and harsher, more of a whistle or a wheeze, and it tends to come from a narrowed upper airway or voice box. Causes range from flat-faced airway anatomy to laryngeal paralysis, airway swelling, tracheal problems, or something lodged where it shouldn’t be.

The signal is not the noise itself but the change. Plenty of dogs have always snored. A dog who has suddenly started, or whose usual snuffle has become louder, raspier, or noticeably harder work, needs an exam. Note when it happens, whether asleep, after exercise, or all the time, and mention that to your vet.

3. A new cough, or a cough that has changed

Coughs in dogs are not all the same, and the sound genuinely matters to a veterinarian. A moist cough that ends in a gag, a soft repeated cough at night, and a dry harsh honk all point in different directions.

One pattern owners describe often is a dry, harsh cough that sounds like a goose honking. Cornell University’s Riney Canine Health Center names a persistent, harsh, dry cough, sometimes described as a goose-honking cough, as the hallmark sign of tracheal collapse. The trachea is the windpipe, and it is held open by rings of cartilage. When those rings soften and weaken, the airway can flatten as air moves through it, which produces that distinctive sound.

It shows up most in toy and small breeds, and Cornell lists Yorkshire Terriers, Pomeranians and Toy Poodles among the breeds most often affected, usually in middle age or later. Coughing episodes tend to be set off by excitement, activity, heat and humidity, inhaled irritants such as smoke, or pressure on the neck. If your dog fits that picture, reading through a plain-language guide to collapsing trachea in dogs before your appointment can help you describe what you are seeing and follow what your vet tells you.

What that cough does not do is give you a diagnosis. A goose-honking cough is associated with tracheal collapse, but kennel cough, bronchitis, heart disease and other conditions also produce coughs, and some of them can sound similar to an owner’s ear. Confirming the cause takes a physical exam and imaging, which may include x-rays, fluoroscopy or airway examination under anesthesia. Your job is to notice the change and describe it accurately. The diagnosis is your vet’s.

4. Their chest or belly is working harder

Healthy breathing is unremarkable to look at. The chest rises and falls a little, and that is about it.

Dogs having trouble breathing use extra effort, and Tufts’ HeartSmart program suggests watching exactly that: how much the chest wall or belly wall moves with each breath. What you may see is the abdomen pumping visibly, an exaggerated heave running through the body, or nostrils flaring wider on each breath. The Merck Veterinary Manual puts it plainly, noting that animals having trouble breathing breathe both faster and harder.

Increased effort is a step up from a raised breathing rate alone. It warrants same-day veterinary attention, not a scheduled appointment next week.

5. They change position to breathe

Dogs will rearrange their whole body to move air more easily, and the posture is fairly consistent.

Tufts describes dogs with severe breathing difficulty sitting or standing with the legs in a wide stance, sometimes with the mouth open and the neck stretched out. The other telling detail is refusal to lie down on their side, because lying flat makes breathing harder. A dog who keeps getting up, won’t settle at night, or props themselves upright in an unusual spot is telling you something.

Treat this as urgent. A dog choosing a breathing posture is already compensating.

6. Panting or open-mouth breathing while resting and cool

Panting is how dogs shed heat, so context is everything. After a walk, in warm weather, during a thunderstorm, or after a burst of excitement, panting is doing its job and should ease off once the trigger passes.

The version that concerns a vet has no trigger. Your dog is lying in a cool room, has not exercised, is not anxious, and is still breathing hard with their mouth open, or the panting simply does not settle. Open-mouth breathing at rest, especially alongside visible effort or a changed posture, is a reason to head in rather than keep watching.

7. Pale, gray or blue gums

Gum color is a fast read on how much oxygen is reaching the tissues. Lift your dog’s lip and look at the gums, keeping your dog’s normal gum color in mind.

Merck’s emergency guidance is direct: open-mouth breathing together with a bluish tinge to the gums or skin indicates severe oxygen loss. Pale or white gums are also listed among the signs of shock. Cornell lists bluish gums or tongue, along with fainting, among the signs that a breathing problem has become a respiratory emergency.

There is no home monitoring step here. Blue, gray or unusually pale gums means an emergency veterinary hospital, now.

What to do, and how fast

Call your veterinarian if your dog’s resting breathing rate is consistently above 30 breaths per minute, if there is a new cough or a cough that has changed in sound or frequency, or if their breathing has picked up a noise it never had before. These need professional assessment, and sooner is better than later.

Go to an emergency veterinarian immediately for visible struggle to breathe, gums that look pale, gray or blue, collapse or fainting, or open-mouth labored breathing at rest that does not settle. If possible, call ahead without delaying your departure, and minimize unnecessary stress and handling on the way.

The single most useful thing you can do before any of this happens is learn your dog’s normal. Count their resting breathing rate a few times while they are healthy and note it somewhere you will find again. When something changes, you will know it quickly, and so will your vet.