Is tear-stained dog food reliable?

Jul 26,2025
7Min

Pathological causes of dog tear stains

1. Conjunctivitis
This should be the most common cause.
2. Tear ducts are blocked
Tears cannot flow out smoothly and remain on the face to form tear stains, which need to be cleared regularly.
3. Inverted eyelash stimulation
This is a physical stimulation, which in layman’s terms means pricking the eyelashes. When you open your dog's eyelids, you feel wet inside, and there are inverted eyelashes at the corners of the eyes, which can only be eradicated by surgery, such as Chow Chow.
4. Ear Problems
Some fans will ask backstage, my dog’s ears are very clean inside, but he dodges and barks when his ears are touched. This may be otitis media, but you must use an otoscope to see it. You think it is clean, but you can’t see the inside of the dog’s L-shaped ear canal with the naked eye~ Your dog’s tear stains must be very deep. Get rid of the otitis media quickly. Once cured, the tear stains will also be reduced~~
5. Dental problems
Dental calculus, or inflammation of the upper teeth and gums, affects the sinuses, which in turn stimulates the tear glands, leading to increased tear secretion in dogs. .
The above pathological causes require treatment of the primary disease. Once the primary disease is cured, the secondary tear stains will naturally lighten or disappear.

Non-pathological causes of dog tear stains

1. Too much hair around the eyes
Excessive hair irritates the eyes and tears will fall directly under the eyes The hair needs to be trimmed regularly by a beautician.
2. The wind blows
Some dogs will cry in the wind if they run too fast or stick their heads out of the car window.
3. Air pollution and dust
Especially in the north, some cities have serious air pollution, and dogs’ eyes are relatively close to the ground. They often go out for a walk and come home with tears in their eyes.
4. Secondhand smoke:
Believe me, this is also the cause of tear stains in dogs.

Is the dog food that removes tear stains reliable?

Some domestic “homemade food” (relatively cheap) that claims to remove tear stains secretly contains low-density alcohol. The dose of gentamicin or chloramphenicol, especially the kind of dog food that can significantly reduce tear stains after a week of eating, has almost become an open secret in the industry. Once dogs eating this kind of dog food get sick, it will be very difficult to treat, and once they get skin diseases, they will suffer from all kinds of ulcers all over the body. The reason is antibiotic resistance.
Let’s take the simplest example. Friends who follow the Internet have probably searched for “What to do if your dog has diarrhea”. The most common answer on the Internet is “Drink some gentamicin”. This sentence did make sense many years ago, and the people who said this were usually dog ​​breeders, because they usually fed dog food from their own kennels, which was not the cheap and functional food that is common on the market today. Sexy dog ​​food (claimed to remove tear stains, beautify hair, enhance immunity, etc.) does not secretly add some antibiotics, so there is no drug tolerance.Drinking some gentamicin in your stomach will naturally help.
In fact, if you feed your dog this kind of cheap dog food secretly containing low-dose antibiotics for a long time, you are essentially screening for drug-resistant bacteria in its body! When the dog gets really sick, his body will be filled with drug-resistant bacteria, which will naturally be very difficult to treat.
This is why when the native dog raised by the old woman in the countryside is sick, "just eat some oxytetracycline and drink some Qingda", but your dog often costs two to three thousand, and it can't be cured over and over again. Here’s why!

The imported food for removing tear stains abroad (relatively very expensive) is a relatively small amount of protein + high in fruits and vegetables + pears (much like the principle of "reducing fire" in traditional Chinese medicine ~ in fact, eating vegetables and fruits directly can also achieve the same effect)
However, relatively low protein intake can lead to a series of other health problems in dogs, including patellar luxation, thinness, decreased physical strength, decreased resistance, etc. At the same time, Quanquan also found clinically that dogs without tear stains are more likely to get sick. Dogs with polyps (physical weakness) and tear stains rarely get sick (strong firepower). Therefore, it is also a contradictory proposition to adjust the diet structure to remove tear stains.

Editor’s suggestions

1. For tear stains caused by pathological reasons, do not rely on eating dog food to remove tear stains (treating the symptoms rather than the root cause), but treat the underlying disease. , this is the root cause.
2. In a sense, non-pathological tear stains are an external manifestation of a dog’s high energy and strong resistance. It is not recommended to pursue dog food that removes tear stains in pursuit of beauty.
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