The present study examined the levels of hemoglobin, MCV, ferritin, and hemoglobin electrophoresis of patients admitted to the hospital for different reasons, thus based on the results of these values, the number of patients diagnosed with iron deficiency, iron deficiency anemia, and hemoglobinopathy were aimed to be compared with their numbers, age, gender, and percentage rates. The cases recruited into the study consist of a retrospective examination of the results of blood samples sent to the biochemistry laboratory for the study of hematological parameters by outpatient clinics and wards in various branches of Kahramanmaraş Sütçü Imam University Research and Practice Hospital between 2007 and 2015. For this purpose, hemogram results, ferritin, Hb electrophoresis of 1,350,750 patients in total were studied. HbA2 (beta thalassemia), HbS (sickle cell anemia), HbF (fetal anemia) values were also compared based on age groups and gender differences. According to the gender difference, 604,924 (44.8%) were female, and 745,826 (55.2%) were male. Age ranges were grouped as 2-5, 6-12, 13-18, 19-49, and 50-year-olds and older. As a result, when the groups of girls and boys in the 2-5 years, 6-12 years, 13-18 age groups are compared, contrary to what is expected, boys seem to be more anemic in both microcytic anemia and iron deficiency anemias. In groups 19-49 and 50 and older, women were more anemic than men. Hemoglobinopathy is one of the most common genetic transitional diseases in Turkey, and the incidence of it regionally varies at significant rates.