Know What Causes Tear Stains
Those rusty streaks are caused by porphyrins, iron-rich pigments in tears that oxidise and turn reddish-brown when they sit on pale fur. They show most on white and light-coated breeds such as Bichons, Maltese, Westies and Shih Tzus.
Excess tearing has many triggers: shallow eye sockets, blocked tear ducts, teething in puppies, hair poking the eye, allergies or irritants in the environment. Persistent heavy staining is worth investigating with your vet, because a sudden increase can point to an eye problem rather than simple cosmetics.
Understanding the cause matters because cleaning treats the symptom, while prevention tackles the moisture that feeds the stain.
A moist, stained area is warm and dark, which is the perfect environment for yeast. That is often what gives tear-stained fur its distinctive musty smell.
Clean the Area Gently Each Day
Consistency beats intensity. Dampen a cotton wool pad with warm water and wipe the stained fur under each eye once or twice daily, always working away from the eye itself. Use a fresh pad per eye to avoid spreading bacteria.
For stubborn build-up, reach for wipes designed specifically for the eye area. Never use human make-up remover, bleaching agents, hydrogen peroxide or anything containing fragrance near the eyes, as these can cause serious irritation or injury.
Keeping the fur dry is half the battle. After wiping, gently pat the area with a soft towel so moisture does not linger and feed fresh staining.
Keep all liquids and wipes clear of the eyeball. If the eye itself looks red, cloudy or sore, stop and see your vet.
Manage the Hair Around the Eyes
Long hair wicks tears across the face and holds moisture against the skin, making stains worse. After cleaning, use a fine-tooth comb to lift dried debris out of the fur, working carefully so you never drag the skin.
Keeping the hair short in this zone reduces staining dramatically. It is a delicate job, so follow a careful method such as trimming the hair around the eyes using blunt-tipped scissors and a second person to steady the head if needed.
Comb through daily. Removing crusts early stops them hardening into the matted, tightly bound clumps that are far harder to shift later.
Point scissors away from the eye and cut with the blade parallel to the face, never towards the eyeball.
Reduce Staining at the Source
Prevention makes cleaning easier. Offer filtered or fresh water rather than tap water high in minerals, wash food and water bowls daily to limit yeast, and switch stainless steel or ceramic bowls for plastic ones, which harbour bacteria.
Look at grooming habits too. Keeping the face clean and dry with a gentle face-washing routine limits the standing moisture that stains thrive on. If staining is heavy despite good hygiene, ask your vet to check the tear ducts and eyes.
Steer clear of internal tear-stain supplements containing antibiotics such as tylosin. These are not licensed for this use and can be unsafe without veterinary guidance.
Frequently Asked
The stain itself is cosmetic, but the constant moisture can lead to skin irritation and yeast infections in the folds. Sudden or heavy tearing can also signal an eye problem, so a big change is always worth a vet check.
Existing stained fur only clears fully as it grows out, so patience is key. You can prevent new staining by keeping the area clean and dry, trimming the hair short and addressing any underlying cause with your vet.
Warm water on a cotton wool pad is the gentlest option, along with wipes made specifically for a dog's eye area. Avoid peroxide, human cosmetics and any fragranced product, all of which can injure the eye.
A sudden increase can be caused by teething, allergies, a blocked tear duct, a hair poking the eye or an infection. Because it can indicate a real eye problem, have your vet examine the eyes rather than just cleaning the fur.