Dog symptom
Sneezing / nasal discharge in dogs
Occasional sneezing is normal. Frequent sneezing or nasal discharge can mean an infection, allergy, or something stuck in the nose.
Common causes of sneezing / nasal discharge in dogs
- Upper respiratory infection (very common in cats)
- Allergies or environmental irritants
- A foreign object such as a grass seed in the nose
- Dental disease affecting the nasal passages
Who's most at risk
- Cats (upper respiratory infections are common)
- Multi-cat homes and shelters
- Brachycephalic breeds
- Exposure to smoke, dust, or aerosols
What you can do at home
- Keep the environment free of smoke, dust, aerosols, and essential-oil diffusers
- Gently wipe away discharge with a soft, damp cloth
- Run a humidifier or sit with your pet in a steamy bathroom to ease congestion
When to see a vet
- Thick, yellow/green, or bloody nasal discharge
- Sneezing with poor appetite, eye discharge, or low energy
- Sudden, violent sneezing fits (possible foreign object)
When it's more serious
- Colored or bloody discharge suggests infection or a deeper problem — book a vet visit.
- Sneezing with these signs (common in cats) warrants a vet check.
- Sudden fits can mean an inhaled foreign body like a grass seed — see your vet.
What your vet may do
- Exam of the nose, eyes, mouth, and teeth
- Look for a foreign body, infection, or dental disease
- Swabs or imaging if it's chronic or one-sided
- Treat infection or remove an object as needed
Questions to ask your vet
- Could something be stuck in the nose?
- Is this infectious to my other pets?
- Do the teeth need checking?
- When does sneezing need imaging?
Frequently asked questions
What causes sneezing / nasal discharge in dogs?
Occasional sneezing is normal. Frequent sneezing or nasal discharge can mean an infection, allergy, or something stuck in the nose. Common causes include: Upper respiratory infection (very common in cats); Allergies or environmental irritants; A foreign object such as a grass seed in the nose; Dental disease affecting the nasal passages.
Is sneezing / nasal discharge in dogs an emergency?
Usually OK to monitor at home. See a vet right away if: Thick, yellow/green, or bloody nasal discharge; Sneezing with poor appetite, eye discharge, or low energy; Sudden, violent sneezing fits (possible foreign object).
What can I do at home for a dog with sneezing / nasal discharge?
Keep the environment free of smoke, dust, aerosols, and essential-oil diffusers Gently wipe away discharge with a soft, damp cloth Run a humidifier or sit with your pet in a steamy bathroom to ease congestion
Sources
Reviewed by the Webvet Veterinarian Team
This guide is general information, not a diagnosis, and does not replace an exam by your veterinarian. If your pet is in distress, contact your vet or an emergency clinic right away.