Healthy kidneys produce the hormone erythropoietin (EPO). EPO tells your bone marrow to make red blood cells. If kidneys are damaged and cannot make enough EPO, your bone marrow will not produce enough red blood cells depriving the body of the oxygen it needs.
Anemia is a common complication of chronic kidney disease. In the USA, 37 million people have CKD, and 1 out of 7 have anemia. It’s less common in the early stages and more common in 3rd stage of CKD.
Generally, anemia is a low level of red blood cells or hemoglobin which is contained in red blood cells.