Causes of red eyes in dogs:

1. It may be conjunctivitis. When there is foreign matter in the dog’s eyes, or conjunctival damage may occur, conjunctivitis may occur. occurs, so the eyes become red.

2. Kidney disease. Kidney disease may also cause your dog’s eyes to turn red and his mouth to smell like urea.

3. Pyometra. A serious disease like pyometra in dogs can also cause red eyes.

4. Allergy. The dog may have eaten or come into contact with the allergen, causing a rash on the dog's body. It usually gets better after an hour. If the rash persists and the dog has other adverse reactions, it must be sent to the hospital for anti-allergic treatment as soon as possible.

5. Exercising a lot. Due to the accelerated blood circulation after a lot of exercise, it is normal for the dog's eyes to be red. It will get better after the dog's body temperature drops.

6. Overheating. Excessive internal fire in the dog’s body causes excessive eye feces. As long as the dog eats some fruits and vegetables every day to reduce the heat, it will be enough until the dog’s eyes return to normal.

7. Entropion of the eyelids, which is the so-called inverted eyelashes. Entropion of the eyelids will cause the eyelashes to constantly irritate the cornea, making the dog's eyes feel very uncomfortable, causing the dog's eyes to become red and tearful. symptom.

8. Viral infection. If the eyes are infected by bacteria, viruses, parasites, or the eyes are swollen, painful, or itchy, they will cause the dog to scratch its eyes frequently with its paws, resulting in red eyes. If the situation is serious, Just rinse with normal saline 3-5 times a day and then instill anti-inflammatory eye drops. If the situation is more serious, it is recommended to go to a professional pet hospital for treatment.

9. If you have had a dispute with other dogs and your eyes were scratched by other dogs. If you have red eyes due to fights with other dogs, it is best to take the dog to a pet hospital for treatment.

10. The lacrimal glands are infected, causing abnormal and large amounts of tear secretion, and the nasolacrimal ducts have no time to clear so many tears, which will lead to excessive eye feces in dogs, causing red and swollen eyes.