INTRODUCTION. More than a quarter of the world's population is anemic, with about one-half of the burden from iron deficiency. The prevention and treatment of iron deficiency is a major public health goal, especially in women, children, and individuals in low-income countries.
Iron deficiency anemia occurs when the body does not have enough iron. It is the most common form of anemia and symptoms can include general fatigue, shortness of breath, and tongue swelling. We Author: Jacquelyn Cafasso And Rachel Nall.
This topic will review the causes of iron deficiency in adults and an approach to the diagnostic evaluation. Treatment of iron deficiency in adults is discussed separately. (See "Treatment of iron deficiency anemia in adults".) Iron deficiency in other populations is presented in separate topic reviews.