Anemia is a condition in which the body has fewer red blood cells than normal. This causes less oxygen to be delivered to cells and tissues in various organs. Resulting in patients experiencing fatigue, fatigue, pale or yellow skin. 

Inside red blood cells, the main component is a protein called hemoglobin. Its job is to transport oxygen to the cells in the body. The process of making red blood cells in adults is usually created in the bone marrow. In quantities sufficient to meet the needs of transporting oxygen to various tissues within the body AnemiaUFABET 

All red blood cells are created from precursor red blood cells. Mature into embryonic red blood cells and develop into mature red blood cells in just a few days. It is then released into the bloodstream. The red blood cells in these blood vessels last about 120 days. Before being removed by the spleen, liver, and bone marrow and the process of making red blood cells begins again to replace the old one that was removed 

When there is an abnormality in the process of making red blood cells or normalcy regarding red blood cells. It will result in the cells and tissues in the body not receiving enough oxygen. causing abnormalities in the functioning of various organs.