There may be many reasons why blood stains appear on the corners of your dog’s eyes. Dogs may have eye diseases such as keratitis, conjunctivitis, or glaucoma, which can cause blood stains around the corners of the eyes.
When dogs are playing or being hit by other objects, their eyes may suffer trauma, causing the corners of their eyes to There are bloodstains around. If your dog's eyes are exposed to a dry environment for a long time, such as low humidity in the air, it will cause the skin around the eyes to become dry and prone to rupture and bleeding. Dogs may rub their eyes with their paws or other objects because they feel uncomfortable or irritated, which can cause scratches and bloody marks on the skin around the eyes. If there are blood marks around the corners of the dog's eyes, it is recommended to seek medical treatment promptly and have the veterinarian treat the symptoms.