Methods to remove cat tear stains:

1. Clear the nasolacrimal duct. The nasolacrimal duct is a tube buried from the inner corner of the eye to the nasal cavity, which can help cats drain tears and reduce the occurrence of tears in cats. Owners can use eye massage to keep the cat's nasolacrimal ducts smooth, thereby reducing tear stains.

2. Use hot water or saline to clean stains. When you find a cat's tear stains, wipe it immediately and take the initiative to dry the tears to prevent oxidation and evaporation from aggravating the tear stains.

3. Owners can regularly give their cats some anti-inflammatory and antibacterial eye drops, such as chloramphenicol eye drops, erythromycin eye drops, etc., which can also prevent and improve cat tear stains.

4. If the cat’s tear stains do not improve for several days, but become more serious, you need to seek medical treatment in time and receive timely drug or surgical treatment.

Causes of cat tear stains:

1. Dietary problems, such as feeding cats low-quality cat food, frequently feeding cats high-salt snacks, etc. When a cat gets angry, when the cat eats too much food that is difficult to digest and has no nutrients, its ability to detoxify will be weakened, and tear stains will appear.

2. In the process of raising cats, some pet owners tend to neglect the cleaning and care of their cats’ ears. This causes cats to have ear mites and chronic ear diseases, which will cause the cat to shed tears frequently and aggravate the cat’s tear stains.

3. Parasitic infection. Sucking nematodes, these worms can survive in the host's eyes for up to a year and continue to irritate the eyes in the conjunctival sac, causing tear stains.