Why Does My Dog Keep Gagging And Coughing? Causes

If your dog is making dog gagging sounds or has a persistent cough, it usually means something is irritating their throat or lungs, or there is an underlying health issue. Dog coughing fits can be startling for owners, making immediate concern about causes of dog gagging completely natural.

Deciphering Dog Coughing and Gagging Sounds

Dogs make many noises that owners often mistake for coughing or gagging. It is important to tell the difference between a true cough, gagging, choking, and reverse sneezing dog episodes.

Coughing vs. Gagging vs. Choking

These sounds are often confused, but they point to different problems.

Coughing

A cough is a forceful burst of air. It helps clear the throat or windpipe of irritants or mucus. A true cough usually sounds wet or dry, but it’s a controlled, repeated action. A canine persistent cough often points to respiratory issues.

Gagging

Gagging is often linked to nausea or something stuck in the upper throat. It sounds like retching or trying to vomit without bringing anything up. Dog dry heave and cough often go together during gagging episodes.

Choking

Choking is an emergency. The dog cannot breathe well or at all. They might panic, paw at their mouth, or turn blue. If you suspect dog choking vs coughing, immediate action is needed.

Reverse Sneezing

A reverse sneezing dog makes a loud snorting sound. It seems like they are trying to suck air in quickly through the nose, rather than pushing air out like a regular sneeze. While scary, it is usually harmless and often stops on its own.

Common Causes of Dog Gagging and Coughing

Many things can trigger these symptoms in your dog. They range from minor irritations to serious illnesses.

Mild Irritants and Environment

Sometimes the cause is simple and short-lived.

  • Dust and Allergens: Just like people, dogs can react to dust, pollen, or strong fumes. If the gagging or coughing starts after a walk or when dust kicks up, this might be the reason.
  • Smoke or Strong Scents: Perfumes, cleaning sprays, or cigarette smoke can irritate a dog’s sensitive airways, leading to a cough.
  • Drinking Too Fast: When a dog gulps down water or food too quickly, they can inhale some, causing a sudden, short bout of gagging or coughing.

Upper Respiratory Tract Issues

Problems in the nose, throat, and windpipe often cause gagging and coughing.

Kennel Cough (Infectious Tracheobronchitis)

This is one of the most common causes of a canine persistent cough.

  • What it is: A highly contagious respiratory infection. It often involves bacteria or viruses.
  • Symptoms: A harsh, dry, honking cough. It often sounds like the dog has something stuck in its throat.
  • Triggers: Exposure to other dogs in places like boarding facilities or dog parks.

Laryngeal Paralysis (Especially in Older Dogs)

This condition affects the voice box (larynx).

  • What happens: The muscles that open the voice box don’t work right. This makes it hard to breathe normally, leading to choking sounds or coughing fits, especially after exercise.

Tracheal Collapse

This is very common in small breeds like Yorkies and Pomeranians.

  • The issue: The rings supporting the windpipe (trachea) become weak. They flatten when the dog breathes in or pulls on the leash.
  • Sound: Often causes a distinct, dry, honking cough, similar to kennel cough. Leash pulling often triggers the dog coughing fits.

Lower Respiratory Tract and Lung Issues

Problems deeper in the chest involve the lungs and bronchi. If your dog has dog wheezing and coughing, this area might be the source.

Canine Influenza (Dog Flu)

This is another contagious infection.

  • Symptoms: Can range from mild congestion to severe fever and a heavy cough.

Pneumonia

This is a serious infection of the lungs.

  • Signs: A wet, deep cough, lethargy, fever, and difficulty breathing. This is a form of dog respiratory distress and needs urgent vet care.

Heartworm Disease

Heartworms live in the heart and major blood vessels leading to the lungs.

  • Impact: They damage lung tissue, often causing a chronic, soft cough, especially after exercise.

Gastrointestinal and Esophageal Problems

Sometimes, the gagging is directly related to the stomach or esophagus, not the lungs. This often presents as dog dry heave and cough.

Acid Reflux (Gastroesophageal Reflux Disease – GERD)

Stomach acid backs up into the esophagus.

  • Symptoms: The acid irritates the throat, causing retching, gagging, and a dry cough, often worse after eating or lying down.

Esophageal Foreign Body

If your dog swallows something that gets stuck in the food pipe.

  • Signs: Sudden, intense gagging, drooling, and attempts to vomit. This is a medical emergency. If you see these signs, know what to do if dog is gagging immediately (see later section).

Megaesophagus

This is a condition where the esophagus enlarges and loses muscle tone.

  • Result: Food doesn’t move down to the stomach properly. Regurgitation (passive spitting up of undigested food) is common, often followed by coughing or gagging as the dog tries to clear their throat.

Other Significant Causes

Heart Disease (Especially Congestive Heart Failure)

When the heart cannot pump blood effectively, fluid can back up into the lungs (pulmonary edema).

  • Cough characteristics: Often a moist, soft cough. It is usually worse at night or when resting. This is a critical sign of dog respiratory distress.

Heartworm Disease

Heartworms live in the heart and major blood vessels leading to the lungs.

  • Impact: They damage lung tissue, often causing a chronic, soft cough, especially after exercise.

Identifying the Type of Cough or Gag

Knowing when the cough happens helps your vet narrow down the possibilities.

Timing of Cough/Gag Possible Cause Description
After drinking water or eating Megaesophagus, Laryngeal Paralysis Irritation or difficulty swallowing.
After excitement or exercise Heart Disease, Tracheal Collapse, Kennel Cough Increased effort strains the airways or heart.
Nighttime or when resting Heart Disease, Severe Bronchitis Fluid pooling or reduced ability to clear airways when lying flat.
When pulled on the leash Tracheal Collapse Pressure on the neck exacerbates airway weakness.
Constant, harsh, dry sound Kennel Cough, Foreign Body Persistent irritation of the upper airway.

Investigating Dog Respiratory Distress

If your dog is struggling to breathe, this moves beyond a simple cough into dog respiratory distress. This is an emergency.

Recognizing Distress Signals

Look for these signs along with the coughing or gagging:

  • Panting when resting: Excessive panting when they should be calm.
  • Blue or gray gums: A sign the body isn’t getting enough oxygen.
  • Straining: Using stomach muscles hard to try and pull air in.
  • Wheezing: High-pitched whistling sounds when breathing in or out. This often signals dog wheezing and coughing.
  • Restlessness: Inability to settle down because they are uncomfortable breathing.

What To Do If Dog Is Gagging

If your dog starts gagging, your immediate response is vital. The protocol changes depending on whether you suspect choking or nausea.

If You Suspect Choking (Dog Choking vs Coughing Emergency)

If your dog cannot breathe, is making frantic noises, or their tongue/gums look blue, treat it as choking.

  1. Stay Calm: Panic makes the dog panic more, worsening breathing problems.
  2. Check the Mouth: Open the dog’s mouth carefully. If you see the object, try to sweep it out with your finger only if you can clearly see it and reach it safely. Do not push blindly, as you might push it further down.
  3. Heimlich Maneuver (If necessary):
    • Small Dogs: Hold them upside down by their hips. Give a few quick, firm thrusts to their belly, right under the rib cage.
    • Large Dogs: Place your hands around the soft part of their abdomen, just behind the ribs. Thrust inward and upward sharply, similar to how the Heimlich is done on people.
  4. Immediate Vet Trip: Even if the object comes out, have the dog checked by a vet. The object may have caused throat damage.

If You Suspect Nausea or Minor Irritation

If the dog gagging sounds are followed by retching or they seem mildly uncomfortable, the issue is likely nausea or acid reflux.

  1. Remove Food/Water: Stop them from eating or drinking for a short time. Sometimes, simply removing the stimulus stops the cycle.
  2. Observe: See if the episode passes within a few minutes.
  3. Check Environment: Look around for anything unusual they might have sniffed or eaten.

Seeking Veterinary Care: Diagnosis and Tests

If the gagging or coughing lasts more than a day, is severe, or keeps coming back, a vet visit is essential to diagnose the cause.

The Examination Process

Your veterinarian will start with a physical exam, focusing on the chest and throat.

  • Listening to the Heart and Lungs: They use a stethoscope to listen for abnormal sounds like crackles (fluid in the lungs), wheezes, or murmurs (heart issues).
  • Palpation: Checking the neck area for swelling or pain, which can indicate issues with the trachea or thyroid.

Common Diagnostic Tools

To pinpoint the issue behind a canine persistent cough, several tests might be needed:

1. Chest X-rays (Radiographs)

X-rays are crucial for imaging the chest cavity.

  • What they show: They help visualize the size and shape of the heart, check for fluid in the lungs (pneumonia or heart failure), and look at the trachea (for collapse).

2. Blood Work

General blood tests can check for infection, organ function, and overall health status. If heartworms are suspected, a specific heartworm test is done.

3. Cough Swabs or Tracheal Wash

If an infection like kennel cough is suspected, the vet might take a sample from the throat or lungs to test for specific bacteria or viruses.

4. Laryngoscopy or Bronchoscopy

For chronic issues, the vet might use a small camera inserted into the larynx or airways. This is the best way to confirm laryngeal paralysis or check for physical obstructions or tumors.

5. Heart Ultrasound (Echocardiogram)

If heart disease is suspected due to exercise intolerance or nighttime coughing, an ultrasound can assess how well the heart chambers are moving blood.

Management and Treatment Options

Treatment depends entirely on the underlying cause identified by your veterinarian.

Treating Infectious Causes (Like Kennel Cough)

For simple bacterial infections, antibiotics might be prescribed. However, most viral causes of dog coughing fits require supportive care only.

  • Rest: Limiting activity allows the airways to heal.
  • Cough Suppressants: Medications like Dextromethorphan can reduce the urge to cough, especially helpful for tracheal irritation.

Managing Chronic Airway Diseases

Diseases like tracheal collapse require long-term management focused on reducing strain.

  • Harnesses Over Collars: Never use a neck collar if tracheal collapse is present; use a harness to avoid pressure on the trachea.
  • Airway Support: In severe cases of collapse, medical devices or surgery might be suggested.

Addressing Heart-Related Coughing

If the cough is due to heart failure, treatment focuses on managing fluid buildup.

  • Diuretics: Medications like Furosemide help the dog eliminate excess fluid from the lungs.
  • Heart Medications: Drugs that help the heart pump more efficiently are essential.

Controlling Acid Reflux and Vomiting

If dog dry heave and cough are caused by GERD, the approach is dietary and medicinal.

  • Dietary Changes: Feeding smaller, more frequent meals and avoiding feeding right before bedtime can help.
  • Acid Blockers: Medications like Omeprazole reduce stomach acid production.

Prevention Strategies

While not all causes can be prevented, you can lower the risk of some common triggers.

Vaccination and Hygiene

Vaccination is key for preventing highly contagious diseases.

  • Bordetella Vaccine: This protects against the primary cause of kennel cough. It is often required for boarding or grooming.
  • Socialization Care: When introducing your dog to new environments or dog groups, be aware of recent outbreaks in the area.

Environmental Control

Minimize airway irritants in your home.

  • Switch to unscented cleaning products.
  • Avoid smoking or vaping indoors.
  • Use air purifiers if your dog has known environmental allergies.

Weight Management and Fitness

Keeping your dog at a healthy weight significantly reduces strain on the heart and respiratory system. Excess weight puts pressure on the chest cavity, making any underlying breathing issue worse, leading to more frequent dog wheezing and coughing.

Frequently Asked Questions (FAQ)

Is it normal for a dog to gag after eating?

It can be normal if it is a quick, one-time event caused by eating too fast or drinking too fast. If the gagging happens frequently, or if the dog spits up food without effort (regurgitation), it needs veterinary attention, as it could signal megaesophagus or GERD.

Can allergies cause my dog to cough?

Yes, environmental or food allergies can cause inflammation in the throat and airways, leading to a dry cough or throat clearing sounds. This is usually mild but can become chronic if the allergen is not removed.

How long does a kennel cough last?

Most mild cases of kennel cough resolve within two to three weeks with rest. However, the cough can linger for up to six weeks, especially in high-energy dogs whose airways don’t fully rest.

What should I use instead of a collar if my dog has a collapsing trachea?

You should always switch to a well-fitted chest harness. Collars exert direct pressure on the neck, which directly compresses the weakened trachea rings, immediately triggering a dog coughing fit. Harnesses distribute pressure across the chest instead.

When is dog wheezing and coughing an emergency?

Any symptom involving dog respiratory distress is an emergency. If your dog’s gums turn blue or purple, they are struggling to pull air in, or they collapse, seek emergency veterinary care immediately. Severe dog wheezing and coughing needs urgent assessment to rule out severe fluid buildup or airway obstruction.

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