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New Mothers

THYROID DISEASE AND NEW MOTHERS

New mothers who have not been previously diagnosed with thyroid disease can develop problems with their thyroid within the first year after giving birth; this is called postpartum thyroiditis (PPT).¹ There are several symptoms of both an underactive and overactive thyroid that new mothers can look out for.¹

PPT and symptoms of an underactive thyroid

Approximately 25–45% of women who develop hypothyroid phase of PPT will experience the symptoms of an underactive thyroid.¹ These include e.g. fatigue, loss of concentration, poor memory, constipation and possible depression.¹

PPT and symptoms of an overactive thyroid

Between 20% and 30% of women who develop PPT experience symptoms of an overactive thyroid.¹ These include e.g. fatigue, palpitations, weight loss, heat intolerance, nervousness, anxiety and irritability.¹

Hyperthyroidism in PPT usually occurs in the first 6 months after the baby is born (most commonly around 3 months) and usually lasts between 1 and 2 months.1 The hypothyroidism phase of PPT usually occurs between 3 and 8 months (most commonly at 6 months) and usually last 4 to 6 months.

How is PPT treated?

PPT is generally a passing and transient condition, and treatment is not needed in all cases.

Follow-up for women with PPT

Even though a diagnosis of thyroid problems may be scary, PPT is not generally a long-term condition and the majority of women find their thyroid gland works normally by the end of the first year after the birth of their baby.¹ Should you experience any of the symptoms outlined above, please consult your doctor.

  • De Groot L, Abalovich M, Alexander EK et al. Management of thyroid dysfunction during pregnancy and postpartum: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab 2012; 97: 2543–2565

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Date of Prep: February 2025