This document discusses anemia, including its definition, clinical presentation, evaluation, causes, morphological classification, treatment, and hematopoietic stem cell transplantation (HSCT). Anemia is defined as a hemoglobin level below 12 gm/dl in women and 13 gm/dl in men. Clinical presentation varies from asymptomatic to symptoms of fatigue, shortness of breath, palpitations, and more severe symptoms in cases of severe anemia. Evaluation includes a complete blood count and tests to identify the underlying cause such as iron deficiency, blood loss, or decreased production. Morphological classification is based on mean corpuscular volume as microcytic, normocytic, or macrocytic. Treatment involves addressing the underlying cause and blood transf