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  • Q&A with Australian Health Practitioners

    How can hyperthyroidism affect pregnancy?

    I have had hyperthyroidism and just found out I am two weeks pregnant. Will my medical condition affect my pregnancy? How, and what should I do?
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  • Dr Gary Sykes

    Obstetrician

    Dr Gary Sykes is a graduate Bachelor of Medicine and Bachelor of Surgery (M.B, B.S.) from Sydney University. He commenced his initial postgraduate training at … View Profile

    Hyperthyroidism (overactive thyroid gland) can affect both the pregnant woman and her in-utero baby. So it is important you are referred to an obstetrician and endocrinologist. There needs to be careful management by the obstetrician with the endocrinologist in pregnancy

    If left untreated you may have worst morning sickness, heart concerns (palpitations and even congestive heart failure), high blood pressure, preeclampsia, and even ‘thyroid storm’ (maternal heart rate and blood pressure become extremely high) especially in labour.

    The risk to the baby is also significant if untreated. If untreated there is increased risk of miscarriage, intrauterine growth retardation of your baby, premature labour, stillbirth, hyperthyroidism in the newborn and possibly even congenital malformations.

    So you will need appropriate medical specialist care to get the hyperthyroidism under control

    Hope all goes well!

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