The signs of anemia in dogs before death are pale gums, loss of appetite, rapid breathing, rapid heartbeat, and pale mucous membranes.

When you find that the color of your dog's gums becomes lighter or even pale, it may be caused by anemia or hypotension. If your dog is not interested in his favorite meats, it may be due to a loss of appetite due to anemia. Anemia will reduce the ability of the dog's blood to transport oxygen and be unable to meet the needs of the body's organs. At this time, the dog may have shortness of breath or panting.