Dog tear nevus is a common eye problem. It usually appears near the inner corner of the dog's eye and resembles the trace of tears. This phenomenon is usually caused by the following reasons: 1. Eye problems: Dogs may suffer from eye infections, blepharitis, conjunctivitis and other eye problems. These problems can cause excessive tears and form tear nevus. 2. Dietary problems: The food your dog consumes may contain too much salt and sugar, which can lead to a water imbalance in the body and lead to the appearance of tear nevus.
3. Genetic problems: Certain breeds of dogs are naturally prone to tear nevus, such as Bichon Frize, Poodle, etc. . 4. Environmental issues: Dogs living in an environment that is too humid, dusty, etc. can easily stimulate the eyes to produce excessive tears and form tear nevus. If your dog develops a tear nevus, you need to take it to the doctor promptly to determine the cause and provide appropriate treatment to avoid aggravation of the symptoms.