Dog anemia may be caused by injury, gastrointestinal disease, malnutrition, or viral infection. Symptoms such as weight loss, lack of energy, lethargy, and rough hair will generally appear. Owners should take their dogs to the pet hospital for treatment as soon as they are discovered. During the examination and treatment, pay more attention to comfort the dog. During the period, you can feed the dog some nutritional paste, goat milk powder, beef and other foods to help the dog supplement its nutrition.