Why Do Dogs Get Tear Stains?

Tear stains in dogs are often caused by dietary issues, congenital factors, underlying medical conditions, or eyelash irritation. Owners should observe their dogs for signs of discomfort, such as pawing at their face or shaking their heads, which may indicate sensitivity and require immediate attention.

Causes of Tear Stains in Dogs

1. Dietary Issues

If your dog consumes heavily flavored food or human food, tear stains may be related to their diet. Switching to a low-salt dog food is recommended. Pay attention to symptoms like frequent face rubbing, licking of the paws, head shaking, or ear infections, which can indicate sensitivities. Artificial colors, additives, preservatives, and grains in pet food can also trigger sensitivities, leading to excessive tear production and worsened tear stains.

2. Congenital Factors

Some dogs have primary excessive tearing, which is a hereditary condition that causes tear stains. Due to shallow eyelid spaces, tears cannot be fully contained, resulting in overflow and subsequent tear staining.

3. Medical Conditions

Breeds with large, prominent eyes, such as Pekingese, Chihuahuas, and Pugs, are prone to tear stains. Their large eyeballs can compress the nasolacrimal duct, causing tears to spill out of the eye socket and eventually form tear stains.

4. Eyelash Irritation

Entropion, or inward-turning eyelashes, irritates the cornea. This discomfort causes dogs to frequently paw at their eyes, leading to excessive tearing and severe tear stains.Bonus resource:Pet Knowledge