Dog Runny Nose

dog runny nose concerned pethonesty

A dog’s runny nose is a common symptom that can range from a minor, temporary irritation to a sign of a more serious underlying health issue. While occasional clear discharge might not be cause for immediate concern, persistent or colored nasal discharge warrants a closer look.

Causes of a Runny Nose in Dogs

Several factors can contribute to nasal discharge in dogs. Here are some of the most common:

Allergies: Like humans, dogs can suffer from environmental allergies to pollen, dust mites, mold, or even certain foods. Allergic reactions often manifest as a clear, watery nasal discharge, accompanied by sneezing, itchy skin, and watery eyes.
Foreign Objects: Dogs are curious creatures and often sniff around in grassy areas and bushes. Grass seeds, small twigs, or other debris can become lodged in their nasal passages, leading to irritation and discharge. Usually, this will only affect one nostril.
Respiratory Infections: Viral or bacterial infections, such as kennel cough (infectious tracheobronchitis) or canine influenza, can cause nasal discharge, often accompanied by coughing, sneezing, fever, and lethargy. The discharge may start clear but can become thick and colored (yellow or green) as the infection progresses.
Nasal Tumors or Polyps: While less common, nasal tumors or polyps can also cause chronic nasal discharge. These growths can obstruct airflow and irritate the nasal passages, leading to bleeding and discharge. The discharge is often unilateral (from one nostril) and may contain blood.
Dental Disease: Infections in the upper teeth, particularly the canine teeth and premolars, can sometimes spread to the nasal sinuses, causing nasal discharge. This is more likely if there’s a root abscess or severe periodontal disease.
Fungal Infections: Certain fungal infections, such as aspergillosis, can affect the nasal passages and sinuses, leading to chronic nasal discharge, sneezing, and facial pain.
Nasal Mites: These tiny parasites can infest the nasal passages, causing irritation, sneezing, and nasal discharge.
Trauma: Injury to the nose, such as from a fall or collision, can result in bleeding and nasal discharge.

What to Watch For

Pay close attention to the characteristics of your dog’s nasal discharge. Key things to note include:

Color: Clear, white, yellow, green, or bloody.
Consistency: Watery, thick, or mucous-like.
Laterality: From one nostril (unilateral) or both nostrils (bilateral).
Other Symptoms: Sneezing, coughing, difficulty breathing, facial swelling, lethargy, loss of appetite.

When to See a Vet

Consult your veterinarian if you observe any of the following:

Persistent nasal discharge lasting more than a few days.
Colored discharge (yellow, green, or bloody).
Discharge from only one nostril.
Difficulty breathing or noisy breathing.
Facial swelling or pain.
Lethargy or loss of appetite.
Coughing or sneezing.

Your vet will perform a physical examination and may recommend diagnostic tests such as a nasal swab, blood tests, X-rays, or a rhinoscopy (examination of the nasal passages with a camera) to determine the underlying cause of the runny nose. Treatment will depend on the diagnosis and may include antibiotics, antifungals, antihistamines, or even surgery.

Ignoring a persistent or concerning runny nose can lead to more serious complications. Early diagnosis and treatment are crucial for ensuring your dog’s health and well-being.