Can thyroid problems cause lactation?

Some breastfeeding mothers with hypothyroidism struggle to make a full milk supply. Thyroid hormones play a role in normal breast development and helping breasts to make milk. When not enough of the thyroid hormones are made, a mother’s milk supply may be affected.

How does hypothyroidism cause lactation?

Primary hypothyroidism can cause hyperprolactinemia and galactorrhea, because increased levels of thyroid-releasing hormone increase secretion of prolactin as well as thyroid-stimulating hormone (TSH).

Does hyperthyroidism cause lactation?

Breastfeeding with hyperthyroidism can be challenging. In addition to typical symptoms, an overactive thyroid may cause a slow or difficult let-down reflex and an overabundant supply of breast milk.

Can hypothyroidism raise prolactin?

In patients with primary hypothyroidism, increased levels of TRH can cause to rise prolactin levels and these patients may have galactorrhea (3). Different increased level of serum prolactin has been reported in 30% of patients with primary hypothyroidism (4).

Can thyroid medication increase milk?

Per Breastfeeding and Human Lactation (Riordan & Wambach 2010, p. 522-523), “If replacement therapy of thyroid extract… is adequate, the relief of the symptoms and an increase in the milk supply can be quite dramatic.”

What is effect on baby if mother is hyperthyroidism?

Uncontrolled hyperthyroidism has many effects. It may lead to preterm birth (before 37 weeks of pregnancy) and low birth weight for the baby. Some studies have shown an increase in pregnancy-induced hypertension (high blood pressure of pregnancy) in women with hyperthyroidism.

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What are the symptoms of hyperthyroidism in females?


  • Unintentional weight loss, even when your appetite and food intake stay the same or increase.
  • Rapid heartbeat (tachycardia) — commonly more than 100 beats a minute.
  • Irregular heartbeat (arrhythmia)
  • Pounding of your heart (palpitations)
  • Increased appetite.
  • Nervousness, anxiety and irritability.

Can your thyroid get messed up after pregnancy?

Postpartum thyroiditis happens when a woman’s thyroid becomes inflamed after having a baby. It may first cause the thyroid to be overactive. But in time it can lead to an underactive thyroid. Experts don’t know what causes this condition.

Does thyroid cause blood clots?

Both overt and subclinical hyperthyroidism are associated with elevated levels of clotting factors in the blood and one study found that both low and high TSH values were associated with an increased risk of VTE.

What meds cause lactation?

Possible causes of galactorrhea include: Medications, such as certain sedatives, antidepressants, antipsychotics and high blood pressure drugs. Opioid use. Herbal supplements, such as fennel, anise or fenugreek seed.

Does thyroid affect dopamine?

It is concluded that hypothyroidism increases dopamine receptor sensitivity by increasing receptor concentration.