Diagnostic Use

Investigation of galactorrhoea.

Investigation of amenorrhoea, infertility or hypogonadism. Raised prolactin levels are (often without galactorrhoea) associated with impaired gonadal function.

Differential diagnosis of pituitary fossa enlargement. Many "non-functioning" pituitary tumours in males and females are prolactin-secreting adenomas. Prolactin estimations are important in assessing the response to pituitary surgery, radiotherapy and drugs such as bromocriptine or cabergoline.

Assessment of hypothalamic-pituitary function. Basal prolactin concentrations may be raised in some patients with hypothalamic disorders such as craniopharyngioma. TRH and chlorpromazine stimulation have been used to further demonstrate abnormalities in prolactin secretion. The results are variable, and these tests are not recommended as a routine.


Endo/Steroid Lab

Delphic Registration Code




Turnaround Time

4 days

Test Code