
Sickle cell anemia or sickle cell disease a genetic blood disorder, which passed down through families, characterized by red blood cells that assume an abnormal, rigid, sickle shape. Red blood cells contain an iron-rich protein called hemoglobin. This protein carries oxygen from the lungs to the rest of the body.In sickle cell anemia, hemoglobin, in the presence of low oxygen tension (caused by hypoxia, acidosis, dehydration or fever), it's crystallizes quickly, causing RBCs to bend in to crescent...