GSTM1 and anemia (phenotype): The present study was conducted to estimate serum ferritin, vitamin D, and hemoglobin (Hb) levels in fibroid uterus cases presenting with anemia and to compare these values with premenopausal fibroid uterus cases presenting without anemia. Further evaluation was done to determine the association between ferritin and serum vitamin D levels in anemic and non-anemic fibroid uterus women to ascertain the correlation.