A faculty member in the Department of biology (Prof. Dr. Hiam Abdel Reda Karim) published an article entitled (AUTO- HEMOLYTIC ANEMIA DISEASE: A SYSTEMATIC REVIEW OF FREQUENCY STUDIES: REVIEW ARTICLE), which was published in the World Bulletin of Public Health (WBPH). The topic of the article is that autoimmune hemolytic anemias (AIHAs) are a group of rare diseases identified through the elimination of red blood cells (erythrocytes) by cold or warm antibodies. There was no authorized AIHA procedure at the time, and clinical studies on treatment and diagnosis were often based on some national guidelines and expert judgment due to a lack of recommendations. (AIHA) in diagnosis, treatment and clinical practice. (AIHA) is a problem. In addition, an adequate understanding of the laboratory tests and pathophysiology performed by the transfusion laboratory was required for accurate diagnosis.