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