Cause one of the reasons why dogs have tear stains: Dietary problems

It can be said that diet is the most common and common reason for the formation of tear stains in dogs. This is because some dogs feed their dogs with dog food or homemade dog food that contains high levels of salt or allergy-prone grains, such as cornmeal, wheat, etc. Some even feed dogs rice or fried things that humans eat, which can easily cause internal heat, lead to yellowish urine, and easily produce tear stains.
The solution to tear stains caused by dietary problems is to change dog food. Natural dog food containing vegetables or fruits is recommended, and grain-free is best. Give your dog plenty of water to drink and try to eat something as light as possible.

The second reason why dogs have tear stains: ear canal infection

Some people may find it strange, what does tear stains in the eyes have to do with the ears? In fact, dog ear problems are also a common factor in the formation of tear stains. When our dog’s ears are infected, such as ear mites, otitis, etc., it will cause the dog’s ears to become swollen and itchy, and the dog will scratch its ears frequently. However, the intersecting nerves on a dog’s face are a very sensitive area. When the pain in the dog’s ear canal extends to around its eyes, it will stimulate the lacrimal glands to secrete tears. If too many tears cannot be discharged from the nasolacrimal duct, It will flow out from the corners of the eyes, and after a long period of accumulation, tear stains will form.
It is best for owners to clean their dogs’ ear canals regularly to avoid infection with ear mites or otitis.

Three reasons why dogs have tear stains: Eye diseases

There are also a large number of dogs with tear stains caused by eye diseases, such as nasolacrimal duct obstruction, dacryoadenitis or intraocular disease. turn. Normal dog lacrimal glands secrete tears, which will enter the pet's nasal cavity through the tear ducts and will not flow out from the corners of the eyes. However, if the nasolacrimal ducts are blocked, tears will flow out from the corners of the eyes, forming dog tear stains over time. There is also the situation where the eyelashes of the dog's eyes are inserted inwards into the eyes. This will cause the eyelashes to irritate the dog's cornea and also cause tear stains. However, entropion of the eyelids needs to be taken to the hospital for surgery.

The fourth reason why dogs have tear stains: congenital inheritance

Another reason is the congenital inheritance of dogs. You can try to put eye drops into the dog’s eyes every day to eliminate inflammation. Helps reduce and eliminate tear stain conditions.