There are many reasons why a dog may suddenly start dry heaving. Typically, dry heaving is a mild symptom that will resolve itself, but it’s best to have your dog cleared by a veterinarian to be on the safe side. Let’s explore the most common causes of dry heaving in dogs.
Nausea and stomach upset
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Nausea is a common cause of dry heaving in both dogs and humans. Nausea can stem from all types of tummy upset in canines, like eating something they aren’t supposed to or being overly hungry.
Nausea can be treated at home with anti-nausea meds, though you should talk to your vet about what type of medication is safe for your pet. Normally, your will ask you to bring your dog in if they are experiencing tummy troubles like dry heaving, vomiting, and diarrhea since there may be something more serious at play.
Gastric Dilatation-Volvulus
Gastric Dilatation-Volvulus or bloat, as it’s more commonly known, is another cause of dry heaving in dogs. Bloat is a serious condition in which the stomach contorts and rapidly fills with air. Aside from dry heaving, other symptoms of this condition include sudden swelling of the abdomen, salivation, and whining.
If you suspect your dog has Gastric Dilatation-Volvulus, you should take them to the vet straight away. Bloat is a life-threatening condition that can send dogs into shock in just a couple of hours.
Eating too quickly
Scarfing down food too quickly is one of the most common causes of dry heaving. Eating kibble (or any food) too fast increases the likelihood that food will get stuck in the throat. When this happens, the body will often cough and dry heave as a way to remove the obstruction.
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Obstruction of the throat, mouth, or GI tract
As we mentioned above, obstructions in the throat, mouth, or GI tract can lead to dry heaving in dogs. An obstruction is a serious condition that requires immediate veterinary attention.
In addition to dry heaving, dogs with a throat or mouth obstruction will typically paw at their face, cough, and choke. Signs of a lower GI tract obstruction include severe constipation, vomiting, and fatigue. The vet will examine the dog visually for obstructions, and if they cannot locate it that way, they’ll perform an x-ray. Surgery may be necessary for some obstructions.
Cardiovascular or respiratory conditions
Dry heaving can also indicate heart or lung conditions like heartworms. Certain heart and lung conditions can irritate or obstruct the respiratory tract causing dry heaving. Other signs your dog may have a lung or heart condition include tiring quickly, vomiting, and changes in activity level.
Diagnosing a heart or lung condition can be tricky and often involves a lot of bloodwork and scans. Early treatment for heart and lung conditions is paramount. Consult your vet immediately if your dog is exhibiting any of the above symptoms.
Kennel cough
Kennel cough, also known as Bordetella, is a highly contagious respiratory illness that affects canines. Dry heaving along with a honking cough are two telltale signs of this condition.
Kennel cough usually resolves on its own without the use of medications, but it’s essential that you quarantine your pet from other dogs if you suspect they have this condition.
Allergies
Allergies, particularly food allergies, are another leading cause of dry heaving in dogs. Common food allergies among dogs include grains, gluten, and certain types of meat. Dry heaving due to environmental allergies is also possible and may result from swelling of the face, tongue, or throat.
If you suspect your dog is having a severe allergic reaction or is experiencing swelling of the face, throat, or tongue, you need to take them to the vet immediately — these symptoms may indicate anaphylaxis, which can be deadly if left untreated.
Intestinal conditions
Some intestinal conditions like inflammatory bowel disease (IBS) can also contribute to dry heaving in dogs. Dry heaving caused by intestinal diseases are usually accompanied by blood or mucus in the feces or vomitus, throwing up, stomach pain, constipation, and bloating.
Tumors
Tumors or polyps on the throat or lungs are also known to trigger canine dry heaving fits. Dogs with tumors or polyps will usually cough so hard that it triggers the gag reflex, causing them to dry heave. See your vet if your dog has a persistent dry cough since this can signal tumors or other respiratory conditions.
Medication side effects
Certain medications can also cause dry heaving in dogs. Like humans, dogs may get nauseous when taking meds on an empty stomach. Alternatively, dry heaving after taking medicine can also point to a drug allergy or sensitivity.
Talk to your vet if your dog is consistently dry heaving or vomiting after taking their medication. The vet may need to change the medicine or alter the dosage. If the cause of dry heaving is indeed a drug allergy, your vet may be able to pinpoint the culprit ingredient so you can avoid it in the future.
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