The reasons why Labrador has eye discharge:

1. It may be viral infection, such as canine distemper virus, and Labrador’s eye discharge will increase.

2. It may be that the Labrador's nasolacrimal duct is blocked. The nasolacrimal duct is blocked and the eye secretions can only flow out through the corners of the eyes and accumulate into eye feces.

3. It may be Labrador eye inflammation, such as conjunctivitis, blepharitis, eyelid entropion, etc., causing eye inflammation, excessive tearing, and excessive eye feces.

4. It may be that eating high-sugar and high-salt foods or a large amount of animal offal causes the Labrador to shed more tears and form eye feces.

5. It is also possible that the Labrador has trichiasis or foreign matter in the eyes, causing the eyes to shed too many tears and form eye feces.