Hypochromic anemia indicates a drop in the level of hemoglobin in the red blood cells. Their color is lighter, hence the term "hypochromic". Hypochromic anemia is often due to a lack of iron, necessary for the production of red blood cells. This deficiency can originate from chronic or acute hemorrhages such as frequent menstruations in women, digestive blood loss, or a lack of iron. A treatment to cure the cause of these hemorrhages, along with an iron supplement, allows the patient to re-establish the level of hemoglobin in the red blood cells in the majority of cases.