Cause of hyperprolactinemia

How dose hypothyroidism cause hyperprolactinemia ?

Authored By Jin on Sunday 9th March 2014


Helen Jackson
Medical Student - Kings College London
Posted over 6 years ago

In primary hypothyroidism, TSH levels are high in an effort to stimulate more T3/T4 release. TSH also stimulates prolactin release from the posterior pituitary.

In secondary hypothyroidism, TSH levels aren't raised, so there is no hyperprol