👉 Erythropoiesis is a biological process that involves the production and/or maintenance of red blood cells. It is a key step in the formation of adult red blood cells, which are responsible for carrying oxygen to the body's tissues and organs. In humans, erythropoiesis occurs during fetal development and continues throughout the life cycle, including during pregnancy and lactation. During this process, the bone marrow generates new red blood cells by dividing into two types: megakaryocytes and