How Pathophysiology of Sickle Cell Anemia Causes Frequent Hospital Visits
How pathophysiology of sickle cell anemia drives repeat hospital visits begins with what happens inside red blood cells. In Nigerians and other Africans, this single gene change translates into chronic pain, infections, and crises that push patients back to A&E again and again. Sickle cell anemia and pregnancy, childhood, and adulthood all sit on this same biology, but the triggers and hospital reasons shift with age. Pathophysiology of Sickle Cell Anemia: What Goes Wrong In sickle cell anemia, a mutation in the beta-globin gene creates sickle hemoglobin (HbS) instead of normal adult hemoglobin. Under low oxygen, HbS sticks together, forming rigid polymers that bend red blood cells into a sickle or C-shape. These sickled cells become stiff, fragile, and dehydrated, so they break down quickly (hemolysis) and clog small blood vessels (vaso-occlusion). This twin process of hemolysis and vaso-occlusion is the core pathophysiology of sickle cell anemia and the root of ...