What Problems Do Dog Tear Stains Cause?

Dog tear stains cause discoloration of the fur below the eyes and increased eye discharge. If not cleaned promptly, bacteria can cause conjunctivitis, leading to red, swollen eyes that the dog cannot open, along with frequent scratching.

Wipe the area clean as soon as you notice staining to avoid infection, and avoid feeding salty food that triggers tearing. If tear stains never improve, have a vet check for a blocked nasolacrimal duct.