Red eyes of dogs may be caused by many reasons, including but not limited to the following common situations: Foreign body irritation: dust in the air, bath shampoo, grass blades, etc. may enter the dog’s eyes, causing eye damage. Redness due to irritation. At this time, you can try to use mild pet eyewash or saline to rinse the dog's eyes. Allergic reaction: Dogs may have allergic reactions to certain substances, which not only causes red eyes, but may also cause edema of the conjunctiva, oral mucosa, and even difficulty breathing. If this happens, it is recommended to take the dog to the pet hospital for desensitization treatment in time.

Eye infection and inflammation: Inflammation of eye infections such as conjunctivitis and keratitis can cause red eyes in dogs. common reasons. These inflammations may be caused by bacteria, viruses or allergens and require timely treatment with anti-inflammatory eye drops or antibiotics.

Eye lesions: Dogs’ eyes may have abnormal lesions, such as entropion, glaucoma, etc. These lesions may cause red eyes. It is recommended to seek medical treatment promptly and have a veterinarian perform professional diagnosis and treatment.