The common causes of red eyes in dogs may be as follows:

1. Caused by accelerated blood circulation after heavy exercise. It is normal for the dog's eyes to be red due to this situation, and they will get better after the dog's body temperature drops.

2. Get angry. If the internal fire in the dog's body is too strong, it will cause excessive eye feces, the white part of the eyes will become red, and the eye feces will secrete more, which is yellow and sticky. The dog will feel thirsty, like to drink water, and will have some bad breath. This type of red eyes needs to be adjusted in the food you eat, and eye problems can be improved with dog eye drops.

3 Infection with bacteria or inflammation can also cause red eyes. This situation needs to be dealt with in time, otherwise the dog’s eyes may become more and more serious.

4. Dacryoadenitis. It is also one of the causes of red eyes in dogs. The main reason is that the lacrimal glands that secrete tears are infected, causing abnormal secretion of tears in large amounts. The nasolacrimal ducts have no time to clear so many tears, which will lead to excessive eye feces in dogs and cause eye problems. Redness and swelling.

5. Caused by trauma. Some dogs fight with other dogs when they go out, or accidentally scratch themselves when they are scratching. It may get their eyes and cause redness. If If it's not serious, you'll get better after a while.

I hope the answer can help you. If you have other questions and want to consult your pet doctor, click on the avatar below for a free one-on-one consultation