Every September, All Children's Hospital observes Sickle Cell Awareness Month. In the common variations of this inherited blood disorder, the red blood cells change shape - from a round shape to a "c" or "sickle" shape, causing red blood cells to clump together. This interferes with the normal circulation of healthy, oxygenated blood through the patient's body. Sickle cell does not prevent people from enjoying a full and active life! This year All Children's Hospital is also helping by promoting registration in the Be The Match Blood and Marrow Donor Registry.