Understanding Causes of Dog Eye Stains: Prevention Tips

Section 1: Canine Eye Discoloration Genetic Causes

1. Congenital narrow nasolacrimal ducts can lead to this issue, often requiring a surgical procedure to open the ducts. However, even after surgery, improper care may still cause the ducts to become blocked again.

2. Some breeds with short snouts, such as Pugs and Bulldogs, have a facial structure that causes their nasolacrimal ducts to curve significantly. This can prevent tears from draining normally through the ducts, leading to blockages.

3. Dogs with large eyes may experience eye pressure due to their oversized eyes, pushing tears out of the eye sockets and creating visible tear stains.

4. Abnormal tear production due to inverted eyelashes can be corrected through eyelid surgery, effectively curing the condition.

Section 2: Canine Eye Discoloration Acquired Causes

1. Inflammation: Internal inflammation, particularly in the mouth or ear, can disrupt tear production, resulting in tear stains.

2. Diet: A diet high in salt and oil can cause metabolic imbalances within the body, leading to tear stains. Different dog food brands offer varying nutritional content suitable for different pet types. Additives and grains in pet food can trigger allergic reactions, indirectly increasing tear production. The tears' lactoferrin can oxidize to a reddishbrown color, staining the corners of the eyes. This is especially noticeable in white dogs like Bichon Frises and Poodles, where tear stains can be quite unattractive.

3. Eye Infections: Bacterial infections in the tear glands or conjunctiva can lead to excessive eye secretions. The nasolacrimal ducts may not be able to handle the overflow of tears, causing tears to spill out and form stains.

4. Environment: A dusty living environment can clog the nasolacrimal ducts, causing tears to overflow and leave stains.

5. Poor Eye Hygiene: Longterm accumulation of eye secretions can block the nasolacrimal ducts, leading to eye inflammation and increased tear production, resulting in tear stains.

Tip: Click How to Prevent and Clean Your Dog's Tear Stains for more information on managing your dog's tear stains.