What causes dark circles under the dog's eyes?

Dogs' dark circles are usually caused by inflammation or allergies. Common causes include:

1. Food or environmental allergies: Certain foods or environments may cause allergic reactions in a dog's eyes, resulting in dark circles.

2. Skin infections or inflammations: If a dog has a skin infection or inflammation, such as an infection around the eyelids, it may also cause dark circles.

3. Trauma or injury: Dogs may also suffer eye injuries and dark circles if they fall or bump into objects during activities.

4. Genetic factors: Some breeds of dogs are naturally prone to dark circles, which may be related to genetic factors.

If you notice your dog has dark circles under his eyes, please take him to the veterinarian for a checkup to rule out potential health problems. Treatment will depend on the specific situation and may include the use of anti-allergic medications, topical ointments, moisturizers or other medications. In addition, it is recommended to pay attention to the dog's diet and environmental hygiene, and avoid irritants and allergy-causing substances to reduce the possibility of dark circles.

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