Anemia

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to create the voki: Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Healthy red blood cells last between 90 and 120 days. Parts of your body then remove old blood cells. A hormone called erythropoietin made in your kidneys signal your bone marrow to make more red blood cells. While many parts of the body are essential to making red blood cells, most of the work is done in the bone marrow. Bone marrow is the soft tissue in the center of bones that helps form blood cells. Hemoglobin is the oxygen-carrying protein inside red blood cells. It gives red blood cells their red color. People with anemia do not have enough hemoglobin. Certain medications Chronic diseases such as cancer, ulcerative colitis, or rheumatoid arthritis Genes -- some forms of anemia, such as thalassemia, can be inherited [|Kidney failure] Blood loss (for example, from heavy menstrual periods or [|stomach ulcers] ) Poor diet Pregnancy · Problems with bone marrow such as lymphoma, leukemia, or multiple myeloma · Problems with the immune system that cause the destruction of blood cells (hemolytic anemia) · Surgery to the stomach or intestines that reduces the absorption of iron, vitamin B12, or folic acid

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