The red corners of a cat’s eyes may be caused by internal heat, foreign bodies, inverted eyelashes, eye diseases, etc. First of all, if the cat’s daily diet is relatively boring, causing the body to get angry, it will cause eye inflammation. Secondly, if a cat’s eyes are affected by foreign objects such as hair, dust, mosquitoes, etc., it will cause the corners of the eyes to become red and cause tears. Furthermore, if the cat has inverted eyelashes, the eyelashes will always affect the mucous membrane of the corners of the eyes, which will cause the corners of the eyes to be red. Finally, if the cat suffers from eye diseases such as conjunctivitis and keratitis, it will have symptoms such as redness of the corners of the eyes and watery eyes, so it is recommended to seek medical treatment in time.

　1. Getting angry

If the owner usually feeds the cat boring food and the cat doesn’t like to drink water, it will easily get angry, which will cause the cat’s eyes to become inflamed, causing the corners of the eyes to become red. At the same time, cats may also experience symptoms such as dry nose, increased eye secretions, yellow urine, and dry feces when they get angry. In this regard, the owner needs to promptly adjust the cat's diet structure, keep the food light, choose cat food with low fat content and low salt content, and provide enough drinking water. At the same time, the cat can be fed some fire-clearing drugs.

2. Impact of foreign matter

If foreign matter such as hair, dust, mosquitoes, etc. accidentally enters the cat's eyes and affects the cat's eyes, it will cause the corners of the eyes to become red and shed tears. Regarding this situation, it is recommended that the owner carefully check whether there is any foreign body in the cat's eyes. If so, the foreign body should be removed in time, and then the cat should be given anti-inflammatory eye drops.

3. Inverted eyelashes

If a cat’s eyelashes grow inverted, the eyelashes will affect the mucous membrane of the corners of the eyes, causing the corners of the eyes to become red. In this regard, the owner can use his hands to pull down the cat's lower eyelids. If he sees that the eyelashes are growing inward, this situation is called inverted eyelashes. It is recommended that the owner take the cat to the pet hospital for treatment in time. For minor inverted eyelashes, the owner can choose to remove the inverted eyelashes. For more serious inverted eyelashes, surgical treatment is recommended.

4. Suffering from eye diseases

If the canthus of a cat’s eyes is infected with bacteria and causes eye diseases such as conjunctivitis and keratitis, it will appear red. At the same time, there may also be symptoms such as tears, increased eye secretions, and frequent blinking. Regarding this situation, it is recommended that the owner consult a pet doctor in time and use pet-specific antibacterial and anti-inflammatory eye drops to treat the cat’s eyes. If you don't get better after taking the medicine, you need to seek medical treatment in time.