Has your dog been making strange whistling or raspy breathing sounds lately? If so, it might be more than just an odd quirk. Wheezing in dogs isn’t something to ignore—it can be an early sign of an underlying health issue. As dog owners, it’s natural to worry, especially when our pets seem uncomfortable or distressed. The good news? Many causes of dog wheezing are treatable once identified.
Let’s take a closer look at some of the most common reasons why your dog may be wheezing and what steps you can take to help.
What Causes Wheezing in Dogs?
Wheezing, or high-pitched breathing sounds, occurs when airflow in your dog’s respiratory system is restricted. This could happen in the nose, throat, or lungs. Below are six possible causes of wheezing in dogs that every pet parent should know about.
Kennel Cough
Kennel cough is a highly contagious respiratory infection among dogs, particularly those in group settings like shelters, daycare centers, or kennels. The most recognizable symptom is a dry, hacking cough, but it can also lead to wheezing when the airways become irritated or inflamed.
If your dog has been around other pups recently and begins to cough or wheeze, a vet visit is in order. Most cases are mild and respond well to rest and medications, but it’s always better to be safe.
Allergies
Just like people, dogs can suffer from allergies that affect their breathing. Common culprits include pollen, dust mites, mold, and even certain foods. If your dog is wheezing during specific seasons or environments, allergies may be to blame.
Wheezing due to allergies is often accompanied by other symptoms such as itchy skin, watery eyes, or sneezing. A veterinarian can perform tests to identify allergens and recommend treatments such as antihistamines or dietary adjustments.
Heartworm Disease
Although wheezing isn’t the first sign of heartworm disease, it can appear as the disease progresses. Transmitted by mosquitoes, heartworm parasites live in a dog’s heart and lungs, making breathing increasingly difficult over time.
Early symptoms include fatigue, mild coughing, and reduced appetite. Without treatment, dogs may begin to wheeze even after light activity. Prevention through regular medication is key, and prompt diagnosis is crucial to avoid long-term damage.
Inhaled Foreign Object
If your dog suddenly starts wheezing and seems panicked or unable to catch their breath, a foreign object in the airway could be the cause. Dogs can accidentally inhale food particles, toy pieces, or plant debris during play or mealtime.
This kind of wheezing is often sudden, intense, and accompanied by choking or pawing at the face. It’s a medical emergency—get to the nearest vet immediately if you suspect your dog’s airway is obstructed.
Collapsing Trachea
More common in small breeds like Chihuahuas, Pomeranians, and Yorkies, tracheal collapse occurs when the windpipe weakens and flattens during breathing. This results in a distinctive honking cough, wheezing, and labored breathing.
While it can’t be fully cured, it can be managed with weight control, medication, and sometimes surgery. If your dog’s wheezing worsens during excitement or activity, ask your vet about this condition.
Nasal Tumors
Although rare, tumors in the nasal passages can cause persistent wheezing in dogs. These growths—benign or malignant—can partially block airflow, leading to noisy breathing. You might also notice nasal discharge, sneezing, or facial swelling.
The prognosis depends on the size, type, and location of the tumor. Early detection can make a big difference, so don’t ignore ongoing wheezing that doesn’t respond to typical treatments.
When to See a Vet for Dog Wheezing
Wheezing is always worth paying attention to. While some causes may be mild and easily treated, others can be life-threatening if not addressed promptly. If your dog’s wheezing is persistent, accompanied by distress, or suddenly appears, it’s time to consult your veterinarian.
In situations where breathing is visibly labored or your dog seems in pain, don’t wait—seek emergency care. Quick intervention could save your pet’s life.
Whether it’s allergies, kennel cough, or something more serious like a collapsed trachea, catching the problem early gives your dog the best chance for a full recovery. Trust your instincts, and never hesitate to seek help when your furry friend seems off.
