Introduction: Iron deficiency anemia (IDA) is the most common nutritional deficiency worldwide. It can cause reduced work capacity in adults and impact motor and mental development in children and adolescents. Aim of the current research was to study the lymphocytic count in premenopausal women with iron deficiency anemia. Material and methods: The study was conducted in the Department of General Pathology of the medical institution. For the study, we selected 100 pre-menopausal women between the age group of 18-40 years who were diagnosed with iron deficiency anemia and their hemoglobin level was less than 10 g/dL. 100 pre-menopausal women with normal hemoglobin level were recruited after matching with the subjects for control group. The patients with thalassemia, leukemia or any other chronic and autoimmune disease were excluded from the study. Laboratory evaluation of each subject was done. Results: The mean age of the patients in study group was 32.67 years and in control group was 34.58 years. There were 100 subjects in each group. Table 2 shows the mean lymphocyte count in peripheral venous blood in pre-menopausal women with Iron deficiency anemia and normal healthy women. The mean CD3+, CD4+, CD8+, and CD19+ lymphocyte counts were 1.66, 0.71, 0.66, 0.41, 1.18 X 10 9 /L, respectively, in study group, and 1.82, 0.59, 0.81, 0.31 and 1.59 X 10 9 /L, respectively, for the control group. Conclusion: Within the limitations of the study, this can be concluded that significant change in seen in the lymphocyte count in premenopausal women with iron deficiency anemia.