TSH question-please help

[Maxmama77]

Hi. I have posted some issues about my breast, but I just found out I had a TSH test for breast discharge, which was normal. Ok, this is what I am wondering... Would this be a useful tool in the prolactin as well/tumors? I am so confused. Do they usually just do one test for this TSH or prolactin. Thanks

[Maxmama77]

Dear Paul MD,

Would this condition be found through a simple TSH or should I ask for prolactin, too? Thanks.

[PaulMD]

Hi there.

Breast discharges can be due to abnormal conditions such as hypothyroidism (low thyroid activity) or increased prolactin levels (may be due to pituitary problems).  A normal TSH should rule out the possibility of hypothyroidism.  If the diagnosis of increased prolactin is to be pursued, you may suggest doing a serum prolactin level.  Increased prolactin is usually found during pregnancy, but in non pregnant women, it may herald pituitary problems, such as a pituitary adenoma.

Regards.