Red blood cell is a non nucleated blood cells , which represent on of the cellular components of blood ,besides white blood cells and platelets . Red blood cell help the body to stay at normal physiological state by carrying the oxygen, glucose and other essential nutrients to all cells of the body . When the number of the red blood cell decrease , the body will face anemia which is a very serious health problem , that may lead to severe complications particularly among pregnant ladies and young children , also you will find many other disorders affecting red blood cells inside this book.