-- title: "Dog Reverse Sneezing And Throwing Up" category: "clinical-methods" metaDescription: "Learn about the causes of dog reverse sneezing and throwing up, when to worry, and how to help your pet at home." primaryKeyword: "dog reverse sneezing and throwing up" secondaryKeywords: ["dog reverse sneezing and throwing up", "pet care advice"]

Dog Reverse Sneezing And Throwing Up

If you’ve ever watched your dog suddenly stop, extend its neck, and make a loud snorting or honking sound, you’ve witnessed reverse sneezing. While this reflex is usually harmless, it can be alarming, especially if it’s followed by vomiting. Understanding the connection between reverse sneezing and throwing up can help you know when to stay calm and when to seek veterinary care.

Quick Q&A: Common Questions

Question: Why does my dog reverse sneeze and then throw up?

Answer: Reverse sneezing is a spasm of the soft palate and throat that can trigger the gag reflex, leading to vomiting. In some cases, post-nasal drip from allergies or a respiratory infection irritates the stomach, causing your dog to vomit after a reverse sneezing episode. While occasional occurrences are usually not dangerous, frequent vomiting warrants a veterinary checkup.

What Is Reverse Sneezing?

Reverse sneezing, also known as paroxysmal respiration, is a reflex that occurs when the soft palate and throat become irritated. Instead of forcefully expelling air through the nose like a regular sneeze, your dog rapidly inhales air through the nose, producing a characteristic snorting or honking sound. The episode typically lasts 30 seconds to a minute and resolves on its own.

Why Does Reverse Sneezing Lead to Throwing Up?

The close anatomical relationship between the throat, esophagus, and stomach explains the connection.

Triggering the Gag Reflex

The forceful inhalation during reverse sneezing can stimulate the gag reflex. This reflex is a protective mechanism that prevents choking, but it can also trigger vomiting. If your dog has a sensitive stomach or has eaten recently, the gagging may be enough to cause regurgitation of food or bile.

Post-Nasal Drip and Stomach Irritation

Reverse sneezing often results from irritation in the nasal passages or throat. This irritation can produce excess mucus that drips down into the stomach (post-nasal drip). The stomach may become upset by the swallowed mucus, leading to vomiting shortly after the episode.

Underlying Respiratory Issues

In some cases, both reverse sneezing and vomiting stem from the same underlying condition. For example, a respiratory infection can cause inflammation in the throat and nasal passages, triggering reverse sneezing, while also causing nausea from fever, dehydration, or swallowed phlegm.

Common Causes of Reverse Sneezing and Vomiting

Allergies

Environmental allergens such as pollen, dust mites, or mold can irritate your dog’s nasal passages and throat. This irritation triggers reverse sneezing, and the resulting post-nasal drip can upset the stomach.

Respiratory Infections

Viral or bacterial infections, such as kennel cough, can cause inflammation in the upper respiratory tract. These infections often produce excess mucus and trigger both reverse sneezing and vomiting.

Foreign Objects

A small foreign object, like a grass awn or seed, can become lodged in the nasal passage or throat. This physical irritation can cause persistent reverse sneezing and, if the object triggers the gag reflex, vomiting.

Excitement or Overeating

Some dogs reverse sneeze when they’re overly excited or after eating too quickly. The rapid inhalation can cause them to swallow air, leading to a distended stomach and subsequent vomiting.

Brachycephalic Breeds

Dogs with flat faces (brachycephalic breeds like Bulldogs, Pugs, and Boston Terriers) are more prone to reverse sneezing due to their elongated soft palates. Their anatomy can also make them more likely to vomit after reverse sneezing episodes.

Home Care and When to See a Vet

What to Do During an Episode

Stay calm. Your dog will likely stop on its own within a minute. You can help by gently massaging your dog’s throat or covering its nostrils briefly to encourage swallowing. This can break the spasm.

When to Monitor at Home

Occasional reverse sneezing followed by vomiting (once a month or less) is usually not a cause for concern, especially if your dog otherwise seems healthy. Keep a diary of episodes to share with your vet.

When to See a Vet

Seek veterinary attention if:

• Your dog vomits frequently after reverse sneezing (more than once a week).
• The vomiting contains blood or looks like coffee grounds.
• Your dog seems lethargic, has a fever, or is not eating.
• Reverse sneezing episodes last longer than 2 minutes or occur multiple times daily.
• Your dog has a known respiratory condition or is a brachycephalic breed with worsening symptoms.

What to Expect at the Vet

Your veterinarian will start with a thorough physical exam, paying close attention to your dog’s throat, nasal passages, and abdomen. They may recommend:

• X-rays to check for foreign objects or signs of pneumonia.
• Blood work to rule out infections or underlying diseases.
• Endoscopy if a foreign object is suspected in the throat or nasal cavity.
• Allergy testing if environmental allergies are a likely cause.

Treatment will depend on the underlying cause. For allergies, antihistamines or steroids may help. For infections, antibiotics or anti-inflammatory medications may be prescribed. In rare cases, surgery may be needed to remove a foreign object or correct elongated soft palate issues.

Prevention Tips

• Manage your dog’s allergies with regular bathing, air purifiers, and vet-recommended medications.
• Feed your dog smaller, more frequent meals to prevent overeating and gulping air.
• Use slow-feed bowls to reduce the speed of eating.
• Keep your dog calm during excitement by using gentle commands or redirecting attention.
• For brachycephalic breeds, maintain a healthy weight to reduce airway pressure.

The Bottom Line

While seeing your dog reverse sneeze and then throw up can be unsettling, it’s often a temporary, harmless event. However, if the vomiting becomes frequent or is accompanied by other concerning signs, don’t hesitate to consult your veterinarian. With proper diagnosis and management, most dogs return to their happy, healthy selves quickly.

Disclaimer: This article is for educational and informational purposes only. It is not intended to substitute for professional veterinary advice, diagnosis, treatment, or regulatory guidance. Always consult a licensed veterinarian or qualified specialist regarding animal health, disease diagnosis, and therapeutic decisions.