Anemia is a common medical disorder in pregnancy that can have significant consequences. It occurs when red blood cells or hemoglobin levels are too low. Anemia in pregnancy is defined as hemoglobin less than 11 g/dl and can be classified as mild, moderate or severe based on levels. Causes include iron, folic acid or vitamin B12 deficiency, blood loss, and genetic disorders like sickle cell anemia. Prevention focuses on adequate intake of iron and folic acid as well as treating underlying illnesses. Management includes oral iron supplementation, treating any infections, blood transfusions if severe, and monitoring for complications during labor and delivery.