1. Femelife Fertility www.femelife.com
Thyroid and Fertility
Femelife Fertility

2. What is subclinical hypothyroidism?
SCH is classically defined as a thyrotropin
(TSH) level above the upper limit of normal
range (4.5−5.0 mIU/L) with normal free thyroxine
(FT4) levels.

3. There is no benefit from the standpoint
of lipid profile or alteration of cardiovascular
risk in non-pregnant women.
Should non-pregnant women be treated for SCH (subclinical Hypothyroidism)?

4. How does your thyroid affect your pregnancy?

5. Thyroid affects Pregnancy
TSH levels outside the normal pregnancy range are
associated with an increased risk of such
obstetric complications as placental abruption,
preterm birth, foetal death, and preterm
premature rupture of membranes (PPROM).

6. Can you get pregnant if you have thyroid problems?
Unexplained infertility and ovulatory disorders can cause infertility in patients with low thyroid levels.
Can you get pregnant if you have thyroid problems?

7. Can a thyroid problem cause a miscarriage?
Low thyroid hormone is associated with
adverse reproductive outcomes including
miscarriage, pregnancy complications,
and delayed foetal neurodevelopment. There is fair evidence that thyroid autoimmunity (positive thyroid
antibody) is associated with miscarriage
and infertility. Treating TSH levels >4.0 mIU/L
is associated with improved pregnancy
and miscarriage rates
Can a thyroid problem cause a miscarriage?

8. What should be the thyroid level during pregnancy?
The Endocrine Society recommends the following pregnancy trimester guidelines for TSH levels:
2.5 mIU/L is the recommended upper limit of normal in the first trimester, 3.0 mIU/L in the second trimester, and 3.5 mIU/L in the third trimester.

9. Does thyroid affect baby?
Untreated maternal hypothyroidism can cause delayed fetal neurological development, impaired school
performance, and lower intelligence quotient (IQ) among offspring.

10. Should there be universal screening
for hypothyroidism in the first
trimester of pregnancy?

11. Conclusion
The American College of Obstetricians and Gynaecologists does not recommend routine screening for hypothyroidism in pregnancy unless women have risk factors for thyroid disease.
While universal screening of thyroid function in pregnancy is not recommended, women at high risk for thyroid disease should be screened.
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