Results: Thyroxine (T 4 ) and tri-iodothyronine (T 3 ) levels showed no difference between the normal pregnancy (9.03 ± 1.18, 1.21 ± 0.3) and pre-eclampsia patients (10.16 ± 1.13, 1.25 ± 0.11), but the thyroid-stimulating hormone (TSH) levels in pre-eclampsia patients were increased (7.22 ± 1.3) when compared to normal pregnancy (p = 0.0001). Conclusion:There was no significant difference in the thyroxine (T 4 ) and tri-iodothyronine (T 3 ) levels in two groups, but there was a significant increase in thyroid stimulating-hormone (TSH) levels in pre-eclampsia patients (7.22 ± 1.3) compared to normal pregnancy (2.48 ± 1.05) (p = 0.0001).