If you’ve noticed your dog throwing up and coughing, you may understandably be alarmed.
These symptoms may appear together or one after the other, and they can indicate anything from minor irritation to a more serious underlying health issue.
We outline the possible causes of vomiting and coughing in dogs, when it’s considered normal, what warning signs to watch out for, and when to seek help from your veterinarian.
Dog Throwing Up and Coughing: Why It Happens
When a dog vomits and coughs at the same time, it can suggest overlapping problems involving both the gastrointestinal and respiratory systems.
Occasional vomiting or coughing may be harmless, but when they occur together or persist, it’s usually time to dig deeper into the underlying cause of vomiting and coughing in dogs.
Dog Throwing Up and Coughing But Acting Normal
A dog that is vomiting and coughing but otherwise acting normal may be experiencing mild irritation of the throat, early respiratory infection, acid reflux, or mild gastrointestinal upset.
Sometimes coughing can trigger gagging or vomiting, especially if mucus or stomach acid is involved. Kennel cough is also a common cause, where dogs still seem fairly active.
Even if behavior seems normal, repeated vomiting and coughing should be monitored because it can progress or indicate an underlying respiratory or digestive condition.
Why Dog Throwing Up and Coughing Happens
1. Kennel Cough
A very common cause of dog coughing and vomiting is kennel cough, a contagious upper respiratory infection.
It spreads quickly in environments where dogs are in close quarters, like kennels, dog parks, or shelters.
Symptoms of kennel cough include:
Dry, honking cough
Retching or gagging (which may cause vomiting)
Sneezing
Nasal discharge
The coughing in kennel cough can be so intense it triggers the dog to vomit, especially after eating, drinking, or excitement.
Though it often resolves on its own in mild cases, severe or prolonged symptoms should be checked by a vet.
Related: Dog throwing up and shaking head (Explained)
2. Respiratory Infections
Viral and bacterial respiratory infections in dogs can also cause a combination of vomiting and coughing.
Infections like canine influenza affect the respiratory tract, and coughing may be accompanied by phlegm or mucus.
If your dog swallows mucus during coughing, it may cause nausea or vomiting.
Symptoms of respiratory infections include:
Persistent moist or dry cough
Vomiting due to throat irritation
Fever or lethargy
Loss of appetite
Nasal and eye discharge
Respiratory infections can worsen quickly in puppies, senior dogs, or immunocompromised pets, so it’s best to seek veterinary care promptly.
3. Foreign Body Obstruction or Choking
Sometimes, dogs cough and vomit because they’ve inhaled or swallowed a foreign object.
For example, a small toy, stick, or even a piece of bone can become lodged in the throat, triggering coughing fits and vomiting from gag reflex.
Signs of choking or obstruction include:
Sudden, intense coughing
Drooling
Vomiting or retching
Difficulty breathing
Pawing at the mouth
This is an emergency. If you suspect your dog may be choking, contact your vet or emergency animal services immediately.
Related: Dog throwing up and panting (Explained)
4. Reverse Sneezing
Sometimes confused with dog throwing up and coughing, reverse sneezing is a sudden, forceful inhalation that can sound like choking or gagging. It occurs when the soft palate becomes irritated.
Though it can cause a dog to cough, retch, or appear to vomit, it usually passes in a few seconds and isn’t dangerous.
However, frequent episodes may indicate an underlying irritant or allergy.
5. Tracheal Collapse
In small breed dogs, especially older ones like Yorkies or Pomeranians, tracheal collapse is a condition where the windpipe weakens and flattens during breathing.
This causes a chronic honking cough and may induce vomiting due to throat irritation.
Symptoms of tracheal collapse include:
Harsh, dry cough (often worsens with excitement)
Vomiting after coughing spells
Breathing difficulty
Exercise intolerance
While it can often be managed with medication, some dogs may require surgery or lifestyle changes.
6. Gastroesophageal Reflux (GERD)
Another reason your dog is throwing up and coughing could be acid reflux or GERD.
This occurs when stomach acid flows back into the esophagus, irritating the throat and causing coughing.
In turn, the irritation may cause the dog to vomit yellow bile or foam.
Common signs of GERD in dogs:
Burping or gagging
Vomiting bile (especially on an empty stomach)
Chronic cough or throat clearing
Lip licking and swallowing frequently
Dogs with GERD often cough after meals or at night when lying down.
A vet can confirm the diagnosis and may recommend diet changes or medication.
Related: Dog throwing up and not eating (Explained)
7. Heart Disease
In some cases, coughing and vomiting in dogs can point to heart issues, especially in older dogs.
When the heart enlarges or fails to pump blood efficiently, fluid can accumulate in the lungs, leading to coughing.
In severe cases, this can cause nausea and vomiting due to reduced oxygenation or side effects of medications.
Warning signs of heart disease:
Persistent coughing (especially at night)
Lethargy or exercise intolerance
Loss of appetite
Vomiting
Difficulty breathing or bluish gums
Heart disease needs prompt diagnosis and long-term management.
8. Ingestion of Toxins or Irritants
If your dog is coughing and throwing up suddenly, think about whether they could have ingested something toxic or irritating, such as cleaning products, smoke, chemicals, or even spoiled food.
Toxins can inflame both the digestive and respiratory systems.
Symptoms may include:
Vomiting and coughing
Excessive drooling
Seizures or tremors
Collapse
Bleeding from the mouth or nose
This is another emergency situation. Call your vet or a poison control hotline immediately.
Dog Throwing Up and Coughing at Night
Nighttime vomiting and coughing may be linked to acid reflux, postnasal drip, respiratory disease, or heart-related fluid buildup.
Lying down can worsen both stomach acid irritation and airway pressure, making symptoms more noticeable at night.
If this happens repeatedly, especially in older dogs, it should be investigated for chronic conditions.
Dog Throwing Up and Coughing and Diarrhea
When vomiting, coughing, and diarrhea occur together, it often suggests a systemic illness such as infection, toxin exposure, severe gastrointestinal disease, or multi-system inflammation.
This combination can also indicate conditions like parvovirus in younger dogs.
This is a more serious symptom cluster and should be treated as urgent due to the risk of dehydration and rapid decline.
Dog Throwing Up Bile and Coughing
Vomiting bile along with coughing may indicate an empty stomach irritation combined with respiratory or throat inflammation.
Bile vomiting is common in acid reflux or gastritis, while coughing may result from airway irritation or infection.
If bile vomiting is frequent, it suggests ongoing digestive imbalance that requires veterinary assessment.
Dog Throwing Up Mucus and Coughing
Mucus vomiting with coughing often points to respiratory infection, kennel cough, or postnasal drip, where mucus is swallowed and then expelled. It can also occur with chronic bronchitis or irritation of the upper airways.
Persistent mucus production with vomiting and coughing should be evaluated, especially if it worsens or affects appetite.
Dog Throwing Up Foam and Coughing
White foam vomiting combined with coughing is commonly seen with kennel cough, gastritis, acid reflux, or throat irritation.
Foam is often a mixture of saliva and stomach acid, especially when the stomach is empty.
If this occurs repeatedly, it may indicate underlying respiratory or gastrointestinal disease requiring treatment.
Old Dog Throwing Up and Coughing
In older dogs, vomiting combined with coughing is more concerning because it may indicate heart disease, chronic bronchitis, tracheal collapse, or gastrointestinal disorders.
Senior dogs are also more prone to aspiration issues, where stomach contents irritate the airways and cause coughing.
Because multiple serious conditions can present this way in older dogs, veterinary evaluation is recommended if symptoms persist or worsen.
Puppy Throwing Up and Coughing
Puppies that vomit and cough may be dealing with infections, parasites, kennel cough, or dietary indiscretion. Their immune systems are still developing, making them more vulnerable to contagious respiratory and gastrointestinal illnesses.
Because puppies can deteriorate quickly, especially if they stop eating or become lethargic, prompt veterinary attention is important if symptoms continue.
What You Can Do at Home
Before visiting the vet, you can take a few steps to help manage the situation:
Keep your dog calm to avoid aggravating cough or vomiting.
Remove access to food for 6-12 hours if vomiting, then offer a bland diet (e.g., boiled chicken and rice).
Ensure fresh water is available, but monitor drinking to avoid overconsumption after vomiting.
Avoid using strong household chemicals that might irritate the airways.
Note any other symptoms, recent changes in diet, environment, or exposure to other dogs.
All of this information will be helpful to your veterinarian during diagnosis.
Dog Throwing Up and Coughing: When to Worry
Occasional coughing or vomiting might not be cause for panic, but if the symptoms persist or appear together frequently, it’s time to get professional help.
You should see a vet if:
Your dog has a persistent or worsening cough
Vomiting occurs more than once in a day
There’s blood in the vomit or mucus
Your dog seems lethargic, feverish, or in pain
Breathing is labored or noisy
Your dog is a puppy, a senior, or has other health issues
Dog Throwing Up and Coughing: Treatment
Treatment depends on the underlying cause. The veterinarian may prescribe cough suppressants, antibiotics (if infection is present), anti-nausea medication, or acid reducers for gastrointestinal irritation.
In cases involving heart or chronic respiratory disease, long-term management may be required.
At home, keeping the dog calm, avoiding irritants like smoke, ensuring hydration, and feeding small, bland meals can help support recovery.
Key Takeaway
While occasional coughing or vomiting might be nothing serious, dog throwing up and coughing at the same time is not something to ignore. These symptoms together can indicate anything from respiratory infections and acid reflux to tracheal collapse or poisoning.
It’s important to observe the frequency, severity, and timing of symptoms. If they persist, worsen, or occur with other signs like lethargy, difficulty breathing, or loss of appetite, seek veterinary attention immediately.
By recognizing the possible causes of vomiting and coughing in dogs and acting quickly, you can help keep your dog healthy, safe, and comfortable.