Porphyrins are commonly called waste products from red blood cells containing iron.
Dog tear stains cause.
Consider bottled or distilled water as well water often has a higher mineral content states klein.
Conditions that might irritate the eye include dog eye infections glaucoma and eyelash or eyelid.
They are created in humans too.
Dogs may also have adverse reactions to plastic food bowls.
For instance water that is high in iron may be a culprit.
Causes of tear staining there are a number of reasons that could lead to tear staining in dogs.
The red rusty stains on your dog are tear stains caused by porphyrins.
In some cases it is simply because your dog s eyes are irritated by an ingrown eyelash an inverted eyelid or hair growing too close to the eye all painful but easily treatable conditions.
Klein states that factors in a dog s environment can also cause tear stains.
When the eyes are continually irritated this can lead to chronic tearing that produces stains.
The cause can be related to health issues shape of the eye blocked tear ducts puppy teething ear infection allergies either food or environmental and so on.
This can lead to the growth of bacteria and yeast.
Red yeast which produces a reddish brown discoloration of the face is a common cause of tear stain problems.