Why Does My Dog Keep Sneezing?

A dog sneezing once or twice is nothing to lose sleep over, but a dog who keeps sneezing, day after day, is trying to tell you something. The cause could be as simple as a whiff of dust or as serious as a nasal foreign body, a tooth root infection, or a tumor, which means the frequency and context of your dog’s sneezing matters just as much as the sneezing itself. Whether your dog sneezes in short bursts outdoors or has been snorting and sneezing for weeks with no clear explanation, our team at Comal Pet Hospital & Resort in New Braunfels, TX has the answers you need. Keep reading to find out what’s behind the sneezes and when it’s time to make that vet appointment.

Why Do Dogs Sneeze?

Dogs sneeze for many of the same reasons humans do: to clear irritants from the nasal passages, in response to allergens, or as part of an infection. But dog sneezing also has a few uniquely canine causes that pet owners should be aware of. The occasional sneeze is completely normal. Persistent sneezing, reverse sneezing, or sneezing accompanied by discharge or other symptoms is worth a closer look.

Common Causes of Dog Sneezing

When a dog keeps sneezing, there are several likely explanations depending on the frequency, duration, and any accompanying symptoms.

Environmental Irritants and Allergens

Just like people, dogs can sneeze in response to dust, pollen, mold, perfume, cleaning products, or cigarette smoke. Dog sneezing triggered by environmental irritants is usually short-lived and resolves once the dog moves away from the source. If your dog sneezes seasonally, after being outdoors, or when you use specific household products, environmental irritants or allergies may be the cause.

Seasonal allergies are common in Texas, where cedar, oak, and ragweed pollen counts can be high for much of the year. Dogs with environmental allergies often show other symptoms too, including itchy skin, paw licking, and watery eyes.

Nasal Foreign Bodies

Dogs are nose-to-the-ground explorers, and small objects like grass seeds, foxtails, plant material, or even small insects can become lodged in the nasal passages. A dog sneezing violently, suddenly, and repeatedly, especially after being outdoors, may have a foreign body in their nose. This is a situation that warrants a veterinary visit, as nasal foreign bodies can cause infection and significant irritation if not removed.

Upper Respiratory Infections

Canine upper respiratory infections including kennel cough and canine influenza frequently cause dog sneezing alongside coughing, nasal discharge, and lethargy. If your dog has been recently boarded, attended doggy daycare, or been in contact with other dogs, a respiratory infection may be responsible for their sneezing. Our veterinary team at Comal Pet Hospital & Resort can assess your dog and determine whether a respiratory infection is present and whether treatment is needed.

Dental Disease

This surprises many pet owners: dental disease, particularly tooth root abscesses in the upper teeth, can cause dog sneezing. The roots of the upper premolars and molars sit very close to the nasal passages, and infection can spread from an abscessed tooth into the nasal cavity, causing sneezing, nasal discharge (sometimes bloody), and discomfort. Regular dental cleanings at Comal Pet Hospital & Resort can prevent this type of problem before it starts.

Nasal Tumors or Polyps

In older dogs or in cases of persistent, worsening sneezing that doesn’t respond to treatment, nasal tumors or polyps are a possible cause. These growths within the nasal passages can cause chronic sneezing, nasal discharge (often from one nostril), nosebleeds, and facial swelling. Diagnosis typically requires imaging, and the prognosis varies depending on the type and stage of the growth.

Brachycephalic Breed Anatomy

Dogs with flat faces including Bulldogs, French Bulldogs, Pugs, Shih Tzus, and Boston Terriers are prone to sneezing and snorting due to the physical structure of their nasal passages and airways. This is related to brachycephalic obstructive airway syndrome (BOAS) and is an ongoing management consideration for these breeds rather than an acute problem. If your flat-faced dog seems to be struggling to breathe or is sneezing excessively, a veterinary evaluation is a good idea.

What Is Reverse Sneezing in Dogs?

Reverse sneezing is a common phenomenon in dogs that often alarms pet owners who mistake it for choking, gagging, or a seizure. During a reverse sneeze episode, a dog rapidly and forcefully inhales through their nose, producing a loud, snorting sound that can last several seconds to a minute. The dog typically stands still with their elbows spread, head extended forward.

Reverse sneezing in dogs is generally harmless and is caused by irritation or inflammation of the soft palate or nasopharynx. It can be triggered by excitement, pulling on a leash, eating or drinking too fast, or environmental irritants. Episodes that are brief and infrequent are not usually a cause for concern. However, if reverse sneezing is happening frequently or if your dog seems distressed during or after episodes, mention it to your veterinarian.

When Should I Take My Dog to the Vet for Sneezing?

Most dog sneezing is benign and resolves on its own. But there are situations where sneezing warrants a veterinary visit. Contact Comal Pet Hospital & Resort if your dog:

• Has been sneezing persistently for more than a few days without improvement
• Has nasal discharge, especially if it is thick, colored (yellow or green), or bloody
• Is sneezing from only one nostril, which can indicate a foreign body or nasal tumor
• Is also showing signs of lethargy, loss of appetite, or difficulty breathing
• Experienced sudden, violent sneezing episodes after being outdoors (possible foreign body)
• Is a brachycephalic breed whose sneezing or breathing difficulties appear to be worsening

How Is the Cause of Dog Sneezing Diagnosed?

At Comal Pet Hospital & Resort, diagnosing the cause of persistent dog sneezing starts with a thorough physical exam, including a close look at the nasal passages, teeth, and throat. Depending on your dog’s history and symptoms, your veterinarian may recommend:

• Rhinoscopy (nasal scope) to examine the nasal passages for foreign bodies, polyps, or tumors
• Dental X-rays to assess for tooth root infections that may be affecting the nasal cavity
• Bloodwork and nasal swabs to identify infectious causes
• Allergy testing if environmental or food allergies are suspected

What Happens After a Dog Sneezing Diagnosis?

Treatment for dog sneezing depends entirely on the underlying cause. Infections may be treated with antibiotics or antivirals. Allergies may be managed with environmental modifications, antihistamines, or other medications. Foreign bodies require removal. Dental disease is addressed with appropriate dental treatment. Your veterinarian will walk you through the recommended plan based on your dog’s specific diagnosis.

A Sneeze Worth Taking Seriously

Dog sneezing is something most pet owners notice every day and most of the time, it truly is nothing to worry about. But when a dog keeps sneezing, especially with other symptoms in the mix, it’s worth getting a professional opinion. Our veterinary team at Comal Pet Hospital & Resort in New Braunfels, TX has the training and diagnostic tools to get to the bottom of your dog’s sneezing quickly and accurately. Don’t let a persistent sneeze go unchecked. Give us a call at (830) 625-8074 or book an appointment online, and let’s figure out what’s going on together.