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Sneezing, Reverse Sneezing and Gagging in Dogs

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Sneezing refers to the normal behavior of expelling air to remove matter through the nasal cavity. Reverse sneezing, on the other hand, refers to the reflex of bringing air into the body to remove irritants in the upper area that lies behind the nostrils. Dogs may gag to remove irritants from the larynx; this is commonly misinterpreted as vomiting.

 

Symptoms and Types

 

Sneezing is often accompanied by a sudden movement of the head downwards, with a closed mouth, and may cause the dog's nose to hit the ground. Reverse sneezing is often characterized by a backwards head motion, a closed mouth and lips sucking in. Gagging usually causes the dog to swallow after extending its neck and opening its mouth. Read more about dog sneezing episodes, and how they could impact your dog's health, using the PetMD Symptom Checker

 

Causes

 

Any breed of dog can be affected by these medical behaviors. The most common causes for younger dogs include infections, the existence of a cleft palate, or bronchial infections. Another primary cause is the involuntary movement of the hairlike cilia that line the respiratory tract and act to remove foreign matter from the air before it reaches the lungs. This involuntary movement of the hair is medically termed ciliary dyskinesis. The most common causes for older dogs include nasal tumors and dental diseases. Other causes can be mucus irritation, nasal passage obstruction, inflammation, excess nasal discharge or secretion, pneumonia, chronic vomiting, and gastrointestinal disease. Under vaccinated or unvaccinated dogs are at a higher risk of developing infections, which may lead to consistent sneezing. Chronic dental disease can lead to both chronic sneezing and reverse sneezing. Mites found in the nasal openings can also be a cause for any of these physical reflexes.

 

Diagnosis

 

The first method of diagnosis is to distinguish between sneezing and reverse sneezing in the dog. Next, if the condition is serious, more in depth testing may be performed to see if there is a more serious underlying medical condition.

 

 
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