Dogs, like humans, can sneeze when they encounter irritants in the air, such as dust, pollen, or strong odors.
Allergies to pollen, mold, dust mites, or certain foods can lead to sneezing in dogs. Seasonal allergies are relatively common.
Infections in the nasal passages or sinuses, often caused by bacteria or viruses, can lead to sneezing. Other symptoms may include nasal discharge and coughing.
If your dog sniffs or explores something, they may inhale a foreign object, like a small piece of grass or a seed, which can trigger sneezing.
Dental problems, including abscesses or infections in the mouth or teeth, can sometimes cause sneezing.
Some dogs may sneeze when they're excited or during play. This is often referred to as "play sneezing" and is harmless.
Dogs with flat faces, like Bulldogs and Pugs, may sneeze more frequently due to their unique facial structures, which can result in airway sensitivity.