Anemia is a common disease of malnutrition and global health issues affecting developing and developed countries, posing serious health risks and problems for social and economic development. According to the WHO (2004), anemia affects about a third of the world’s population due to a lack of nutritious food. For this reason, the purpose of this review is to learn more about anemia, including its types, causes, symptoms, and treatment, and to inform the public about the disease.