The companies are advertising to patients with milder anemia, she said, because they represents the biggest untapped market.

Weakness or fatigue associated with mild anemia (a deficiency in red blood cells).

It's normal to have mild anemia when you are pregnant.

Too much hemoglobin C can reduce the number and size of red blood cells in your body, causing mild anemia .

Sampras has β-thalassemia minor, a genetic trait that sometimes causes mild anemia.

People with thalassemia make less hemoglobin and fewer circulating red blood cells than normal, which results in mild or severe anemia.

However, even in the homozygous state this disorder will result only in a mild microcytic anemia.

If you have one damaged gene, you may have mild anemia and probably won't need treatment.

If two genes are missing or damaged: You will have very mild anemia that will not need treatment.

If three genes are missing: You will have mild to moderately severe anemia.