If your dog has reddish-brown streaks running down from the corners of their eyes, you are not alone. Tear stains are one of the most common worries for dog owners, especially if your dog has white or light-colored fur. The good news is that in many cases they improve with simple, gentle daily care. The bad news is that a lot of the advice online is confusing — and some of it is dangerous. This guide explains what tear stains really are, why they happen, and how to clean them safely — plus what to avoid and when to see a vet first.
What Are Dog Tear Stains?
Tear stains are reddish-brown marks on the fur below a dog’s eyes. They form when tears spill over the eyelids instead of draining away normally, and then sit on the fur.
Dog tears contain natural substances called porphyrins — iron-containing molecules released when red blood cells break down. They are also found in saliva, which is why you may see similar reddish staining around a dog’s mouth or paws from licking. When porphyrin-rich tears meet air and sunlight, they oxidize and turn reddish-brown. The stain is not dirt, and it is not a sign that you are doing something wrong.
That is why tear stains show up most clearly on white and light-coated breeds such as Maltese, Shih Tzus, and Poodles. A small amount of staining is common and often harmless — but it is still worth asking why your dog is tearing more than usual.
What Causes Tear Stains in Dogs?
Tear stains happen when tears overflow onto the face instead of draining through the tear ducts into the nose. Vets call excess tearing epiphora.
Allergies and irritation. Pollen, dust, mold, and smoke can irritate the eyes, just as they do in people. Some dogs are also sensitive to certain foods, and food-related irritation can show up as watery eyes alongside itchy skin or ear problems.
Blocked or narrow tear ducts. Healthy tears drain from the eye through tiny tubes called tear ducts. If a duct is blocked or narrowed, tears have nowhere to go and spill onto the face. Some puppies are born with narrow tear ducts and grow out of it.
Eye shape and breed. Flat-faced breeds with shallow eye sockets, dogs with very prominent eyes, and dogs with loose eyelids can all have tears that drain poorly. Long hair growing into the corner of the eye can also wick tears down the cheek.
Diet and water. Diet may play a role for some dogs, although it is not the whole story. Low-quality food or food sensitivities are sometimes linked to extra tearing, and some owners notice an improvement after switching to a better-quality diet. Some tap water is also high in minerals such as iron, and filtered water may help reduce new staining.
Medical causes. Sometimes excess tearing is a sign of something that needs treatment: eye infections, scratches on the eye surface, ingrown eyelashes, glaucoma, and dental problems can all increase tearing. Teething puppies often tear more too.
How to Clean Dog Tear Stains Safely
The safest way to clean tear stains is slow and gentle. You are working right next to your dog’s eyes, so every step should be calm, soft, and patient. Never rush, and stop if your dog becomes stressed.
Step 1: Gather your supplies. You need only a clean, soft cloth or cotton pad, a bowl of warm water, and — if you want them — vet-approved tear stain wipes. Choose plain, fragrance-free wipes made for use around dogs’ eyes.
Step 2: Soften the stains with warm water. Dampen the cloth with warm — not hot — water and hold it gently against the stained area for 20 to 30 seconds. This softens dried tears and crusty buildup so you can wipe it away without pulling at the fur. Do not pick at stuck discharge; hold the cloth there longer instead.
Step 3: Wipe gently, away from the eye. Wipe in one direction: start near the inner corner of the eye and move outward and downward, away from the eyeball. Use a fresh part of the cloth for each pass, and light pressure only. Never rub back and forth, and never press the cloth into the eye itself.
Step 4: Dry the area thoroughly. Damp fur is a perfect place for yeast and bacteria to grow, which can make stains darker and the skin sore. After every wipe, pat the area dry with a clean, dry cloth.
Step 5: Keep the fur around the eyes short. Long fur traps moisture and wicks tears down the face. Keeping the hair in the inner corners trimmed short helps the area stay dry and makes cleaning easier. Ask your groomer to do this, or do it yourself with blunt-tipped scissors — but only if your dog sits very still.
Step 6: Make it a daily habit. Once a day is the right rhythm for most dogs, usually at the same time — after the morning walk, for example, or before bedtime. A quick one-minute wipe each day prevents new stains from setting in. It fits naturally into a wider at-home grooming habit — see our guide to dog grooming at home for beginners.
Everyday Habits That Help Prevent New Tear Stains
Cleaning removes the stains you can see. A few small daily habits help stop new ones from forming.
Switch to stainless steel bowls. Plastic bowls can develop tiny scratches that hold bacteria, and some dogs are sensitive to plastic. Stainless steel or ceramic bowls are easier to keep clean. Wash them daily.
Try filtered water. If your tap water is very hard or high in minerals, switching to filtered water is a simple, harmless experiment. It will not remove stains that are already there, but some owners see less new staining over a few weeks.
Keep the face dry after meals. Some dogs dunk their whole face in the water bowl. A quick pat-dry after eating and drinking helps the fur stay dry and reduces staining.
Check the diet with your vet. If your dog also has itchy skin, ear problems, or an upset stomach, a food sensitivity could be contributing to the tearing. Do not switch foods suddenly — talk to your vet first.
Keep the living space clean. Regular vacuuming, washing your dog’s bedding, and avoiding strong scents, smoke, and dusty rooms can reduce eye irritation.
Add face care to bath time. Tear stain cleaning works best as part of regular grooming, not as a one-off job. Our step-by-step guide on how to bathe a puppy for the first time shows how to keep bath time calm and safe.
How Long Does It Take to See Results?
Even with perfect daily care, expect to wait 4 to 8 weeks before you see a clear improvement. There are two reasons. First, the reddish color is already in the fur, and no wipe can change the color of hair that has already grown. The stain fades only as the stained fur grows out and is trimmed away, and clean new fur grows in its place. Second, the underlying tearing needs time to settle. If allergies or diet are involved, improvement follows the cause, not the cleaning.
Be suspicious of any product that promises to erase tear stains in a few days. Fast results usually mean a harsh chemical that should not be near the eyes, or a dye that covers the stain instead of removing it. A slow, steady improvement over one to two months is the sign that your routine is working.
What NOT to Do
The area around a dog’s eyes is delicate, and some popular “remedies” can cause real harm.
Never use hydrogen peroxide, bleach, or vinegar near your dog’s eyes. These are sometimes suggested online as stain removers, but they are far too harsh for the eye area. Hydrogen peroxide and bleach can burn the skin and damage the eye, and vinegar stings and irritates.
Never use human eye drops, makeup removers, or whitening products. Products made for people are not made for dogs. Human eye drops can contain ingredients that are unsafe for dogs, and makeup removers and whitening creams often irritate the eyes and skin.
Never use antibiotics or tear stain powders without a vet’s advice. Some tear stain products sold online contain antibiotics such as tylosin. Using antibiotics without a vet’s guidance can cause side effects, contribute to antibiotic resistance, and hide a medical problem that needs proper treatment.
Do not scrub hard or pick at crusts. Scrubbing irritates the skin, can cause small cuts, and may make tearing worse. Soften stuck discharge with a warm cloth first and let it come away gently. Do not pour water or any liquid directly into the eye, either.
Do not ignore the cause and only treat the stain. A stain that keeps coming back is telling you something. Cleaning the fur is fine, but if the tearing does not improve, the underlying cause still needs attention.
When to See a Vet
Home cleaning is for mild, stable staining in an otherwise healthy dog. Book a vet visit promptly if you notice any of the following, because these signs can point to a medical cause that needs to be ruled out first:
- The staining appeared suddenly, or got much worse in a short time.
- Only one eye is affected, when both were fine before.
- The eye is red, swollen, cloudy, or the third eyelid is showing.
- There is yellow or green discharge, not just clear tears.
- Your dog is squinting, pawing at the eye, or keeping the eye closed.
- Your dog seems in pain, is eating less, or is less active than usual.
- The skin under the eye is red, sore, smelly, or losing fur.
At the visit, the vet may check the tear ducts, look for scratches on the eye surface, test tear production, and check for infections, ingrown eyelashes, or dental problems. These checks are quick and painless. If a medical cause is found, treating it often reduces the tearing, and the staining fades over the following weeks. If your dog’s eyes are healthy, the vet can confirm that daily cleaning is the right plan. Regular checkups also help catch eye problems early; if you are unsure how often your dog should be seen, our guide on how often to take your dog to the vet by age explains the usual schedule for puppies, adults, and seniors.
FAQ
How do I clean my dog’s tear stains safely at home?
Use a soft cloth or cotton pad dampened with warm water, or a vet-approved tear stain wipe. Wipe gently from the inner corner outward and downward, away from the eyeball, then pat the fur dry. Do this once a day. Never use hydrogen peroxide, bleach, vinegar, or human products near the eyes.
Why does my dog have tear stains on only one side?
One-sided staining is worth getting checked by a vet. It can sometimes be a simple blocked tear duct on that side, but it can also be a sign of an eye scratch, infection, or ingrown eyelash. A vet visit is the safest next step.
Are tear stains painful for dogs?
The stain itself is usually not painful — it is discolored fur, not a wound. But the causes behind it can be uncomfortable: constant dampness can irritate the skin, and eye problems such as scratches or infections can hurt. If your dog paws at the eye, squints, or the skin looks sore, see a vet.
Can changing my dog’s food or water help with tear stains?
It may help some dogs, but it is not a guaranteed fix. If a food sensitivity or high-mineral tap water is contributing to extra tearing, switching to a better-quality diet or filtered water can reduce new staining over several weeks. Always change food gradually and talk to your vet first.
How long do tear stains take to go away?
With daily gentle cleaning, expect 4 to 8 weeks to see a clear improvement. The stained fur has to grow out and be trimmed away, and new clean fur has to grow in. There is no safe way to make stains vanish overnight.
Conclusion
Tear stains are frustrating, especially on a light-colored dog where every mark shows. But they are also very manageable. Once you understand that the reddish color comes from porphyrins in tears, the plan becomes simple: find out whether there is a medical cause, clean the area gently every day, keep the fur dry and trimmed, and give it time.
Start with a vet check if the staining is new, one-sided, or comes with any sign of discomfort. Then build the one-minute daily wipe into your routine and keep the bowls clean. Your dog does not care about perfect white fur, but they do care about feeling comfortable. Gentle, patient care gives them both.