Tear stains in cats can be caused by dietary issues. If owners frequently feed their cats foods that are too high in salt or oil, it can easily lead to tear stains. Cats primarily digest and absorb salt through their sweat glands, but these glands are not very well-developed. Therefore, excessive salt intake can easily cause symptoms of internal heat, which in turn leads to tear stains.



In addition, a cat's tearing may also be caused by foreign objects irritating its eyes. For example, if cat hair, insects, pollen, dust, or other dirt flies into the eyes and cannot be drained through tears in time, it may lead to eye infection and inflammation.

For breeds like Garfield cats with shorter nasal passages, tear stains are common due to genetics. Pet owners can use pet eye drops to care for their cats' eyes. The stained fur under the cat's eyes needs to be wiped away promptly, otherwise, prolonged immersion in the skin may cause skin diseases. Owners can moisten a wet tissue with warm water, squeeze out the excess water, and then wipe away the tear stains. After wiping, dry the area with a dry tissue.