contribute to these changes. These factors could contribute to thyroid dysfunction during pregnancy especially when a
deficiency of iodine intake exists and when thyroid reserve is not sufficient.
Aim: To study thyroid functions in pregnant women avoiding maternal and fetal complications associated with thyroid
dysfunctions.
Materials and Methods: A cross-sectional study was carried out on 100 pregnant women attending Obstetrics Outpatient
Clinic in Suez-Canal University Hospitals were invited to enroll in the study. At the end of study, the blood samples were
assessed for free T3, free T4 and TSH.
Results: This study revealed that most of the pregnant women had normal thyroid functions (51%), while subclinical
hypothyroidism (39%) was the most prevalent disorder followed by clinical hypothyroidism (6%) and isolated
hypothyroxinemia (4%).
Conclusion: The most prevalent pattern of thyroid dysfunction in pregnant women was subclinical hypothyroidism.