Why Does My Dog Have Tear Stains?

Common Causes of Tear Stains

Tear stains often result from bacteria growing in damp areas around the eyes, especially in dogs with flat faces or wrinkled skin like pugs or shih tzus. Moisture from tears, saliva, or water from a bowl can collect in facial folds, creating a perfect environment for bacteria. This leads to discoloration and staining of the fur. In some small dogs, skull bone shifts during teething can misalign tear ducts, causing excess tear production and more moisture—leading to stains.

How to Clean Your Dog’s Eyes Safely

Use a clean, damp washcloth or lint-free cotton ball to gently wipe away discharge from around the eyes. Avoid scrubbing dry fur, as this can irritate the skin. For dogs that play in dusty or sandy areas, flush the eyes with a sterile eyewash solution before wiping. A plastic flea comb can help remove debris without scratching. Always use products designed for tearstains—avoid powders near the eyes, as they may irritate and cause more tears.

When to See a Veterinarian

If you notice redness, cloudiness, excessive discharge, crusting, squinting, or a visible third eyelid, contact your vet. These signs may indicate an eye infection, allergy, or foreign body. Allergies can cause tearing and itching, which may worsen stains. Foreign objects like grass seeds or dirt can get trapped behind eyelids and cause irritation, watering, and pawing. If you can’t remove the object or the dog continues to squint, seek veterinary care immediately.

Internal and External Solutions

External cleaning is key—use vet-recommended eye wipes or a dilute hydrogen peroxide solution (1:10) to clean the area. Avoid chlorine bleach, as it can cause chemical conjunctivitis. For cosmetic improvement, some pet stores sell products you can sprinkle on food to reduce stains. Internally, adjusting the pH of tears and saliva with alkaline agents like calcium, potassium, or organic apple cider vinegar may help stop bacterial growth. Always consult your vet before starting any supplement.

Prevention and Long-Term Care

Keep your dog’s face clean daily, especially around the eyes, nose, and chin. Trim hair that falls into the eyes, as it can cause irritation. If your dog has a white coat, stains may be more noticeable. Regular grooming and cleaning can reduce but not eliminate stains entirely. For show dogs, remove all chalk or powder before entering a competition. Never use harsh chemicals or unapproved products near the eye area.