What exactly is anemia?

Low red blood cells: Anemia is a low red blood cell measure. This is typically expressed as a hemoglobin or hematocrit. The symptoms can be mild if anemia develops slowly. These include paleness, fatigue, headaches, malaise. There are many causes of anemia, ranging from blood loss to vitamin deficiencies to poor red blood cell production.

Anemia...: Anemia (low hemoglobin) is caused by the body losing blood (heavy periods, blood in stool, red blood cell instability [hemoglobinopathies] or destruction [hemolysis]), the bodies inability to produce new red blood cells (for example iron deficiency), or a combination of these. Many causes of anemia are treatable, and some are inherited (sickle cell). A hematologist can help.