How does hypothyroidism cause hyperprolactinaemia?

I was just wondering how hypothyroidism causes hyperprolactinaemia?

I thought that TRH stimulates prolactin, so if TRH is low surely prolactin should be low too?

Authored By Zahra Rabbee on Thursday 7th February 2013

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Miss Luna Ibrahim
·
Medical Student - Warwick
·
Posted almost 7 years ago

TRH is high in hypothyroidism.

Dopamine has the dominant influence over prolactin secretion. Secretion of prolactin is under tonic inhibitory control by dopamine, which acts via D2-type receptors located on lactotrophs. Prolactin production can

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