Anemia is not a disease, but a sign that the body has some sort of problem with its red blood cells (RBCs). If a person's blood does not have the right amount of red blood cells or hemoglobin, anemia can develop. Anemia is defined as a decrease in the circulating red blood cell mass and an equal decrease in the oxygen carrying capacity of the blood (also known as hemoglobin). There are many types of anemia that are grouped by their underlying cause. To determine which type, doctors describe color, size, and shape of red blood cells. Treating it has to be specific for each type, which means treating the underlying disease.
There are three main types of anemia. Anemia caused by blood loss, which includes accidents, surgery, or a burst blood vessel.
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