Here are five common culprits of hair loss in dogs that should be discussed with your veterinarian. Allergies are a frequent cause of hair loss in dogs. This may due to environmental triggers such as pollen, molds and dust mites, or due to parasitic triggers like fleas or mites. Food allergies are another possible cause of hair loss.
Anemia, also spelled anaemia, is usually defined as a decrease in the amount of red blood cells (RBCs) or hemoglobin in the blood. It can also be defined as a lowered ability of the blood to carry oxygen.
Red blood cells contain hemoglobin, a protein that enables the blood to carry oxygen to every part of the body. Anemia develops when the body does not produce enough red blood cells or red cells are lost due to bleeding or other causes. In people with anemia, the blood is unable to supply enough oxygen to the body. There are many possible causes of anemia. Symptoms of anemia can include: 1  Fatigue. 2  Weakness. 3  Dizziness.