Introduction : The loss of pregnancy is always distressing to mother irrespective of its timing. Abortion has serious consequence with appreciable risk of maternal mortality and long term morbidity. Pregnancy is considered as a thphysiological stress. Normal static metabolism of the women is changed into dynamic anabolism. Magnesium is the 4 most abundant cataion in the human body, role of Mg in enzymatic activity of cells to release energy is well established. In this context the present work is being undertaken to check serum Mg levels in different types of abortions . Material And Methods : Cases and controls were selected from patients attending the dept.