1. Diet

Some owners are not interested in dog food. They prefer to make food for their dogs themselves, while others eat the same food as themselves, but the content of the food Too much salt is also a cause of tear stains. Unsuitable dog food can also cause tear stains in dogs, so owners may need to try changing it a few times to see the effect. In addition, you should give your dog more water at ordinary times. Adding some apple cider vinegar to the water can also play a certain role.

2. Physical reasons

1. Ear canal infection

When the ear canal is infected by bacteria, viruses, fungi and parasites, or the ear is swollen, painful and itchy, This causes the dog to frequently scratch its ears with its hind feet. The facial nerve and facial nerve are intertwined, and this is a very sensitive area because deep pain in the ear canal extends around the eyes, stimulating tear gland secretion. When excess tears cannot drain out of the nasolacrimal duct, they overflow from the corners of the eyes near the nose.

2. Nasolacrimal duct obstruction
Because the nasolacrimal duct is infected and becomes inflamed and swollen, causing the entire duct to be completely blocked or incompletely blocked, tears cannot be discharged from the nasolacrimal duct normally, and naturally It will overflow and form tear stains.
3. Trichiasis
If there is trichiasis, it will continue to irritate the cornea. This situation will make the dog's eyes feel very uncomfortable, causing the dog to frequently scratch the eyes with its forelimbs, and the tears will increase. Over time Over time it can cause severe tear stains.
4. Dacryoadenitis

The main reason is that the lacrimal glands that secrete tears are infected, resulting in an abnormally large amount of tear secretion. The nasolacrimal ducts are too late to clear the tears, causing the tears to flow out.

5. The dog breed itself
This phenomenon usually occurs in short-nosed dog breeds, such as pugs, chows, etc. Because dogs with such an appearance will make the curvature of the nasolacrimal duct become very large, the amount of tears discharged is limited. Even the normal amount of secreted tears cannot be loaded, and tear stains are prone to occur.

3. Disposal

1. Ear canal infection: The dog’s ear canal should be cleaned regularly. If the ear hair is too long, it should be cleaned in time and treated with He picked out his ears. If there is inflammation, you need to clean it with ear cleaning water first, then clean the ear canal, and finally apply ear medicine.

2. Nasolacrimal duct obstruction: Generally speaking, veterinarians recommend antibiotic treatment, combined with minor surgery to unblock the nasolacrimal duct, which can improve the condition; treatment methods and frequency vary depending on the degree of symptoms, and may seriously affect the condition. To solve the problem of blocked nasolacrimal ducts, we performed multiple rounds of unblocking of the nasolacrimal ducts.

3. Trichiasis: This is usually solved through surgery.
4. Dacryoadenitis: The common way is to use medication to control it. The treatment period depends on the severity of the condition, which may range from five days to around 5 days.
5. Eye inflammation: Eye inflammation is also a cause of excessive tears in dogs. You can first try to instill chloramphenicol eye drops for a period of time to see the effect.What is the result?