Why Is My Dog Sneezing?
Veterinary references checked with PetHealth+ · Last reviewed June 2026
By Kaiser Khan , Founder Veterinary references checked with PetHealth+ ( process ) Last reviewed Cite this page How we research & review
Occasional sneezes clear the nose. Frequent sneezing with discharge, blood, or pawing at the face may mean infection, foreign body, or dental disease.
Benign sneezing
Dust, pollen, and playful ‘reverse’ sneezes in excitement.
Concerning signs
Green discharge, nosebleeds, one-sided sneezing, or foul odour.
Foreign bodies
Grass seeds in nostrils cause sudden violent sneezing — vet removal needed.
Related: Reverse sneezing · Dog allergies
Frequently asked questions
Can dogs get colds?
They get respiratory infections — kennel cough and viruses cause sneezing.
Why sneeze on the grass?
Sniffing stirs dust and allergens — also a play behaviour in some dogs.
Is bloody sneeze an emergency?
Yes — schedule urgent vet care.
Do dental problems cause sneezing?
Infected upper teeth can drain into the nose and cause sneezing.