How does primary hypothyroidism affect TRH and prolactin levels?

Updated: Mar 03, 2021
  • Author: Philip R Orlander, MD, FACP; Chief Editor: George T Griffing, MD  more...
  • Print
Answer

Primary hypothyroidism causes an elevation of TRH, which can cause an elevation of prolactin along with TSH. Prolactin levels in patients with hypothyroidism tend to be lower than those usually seen with prolactinomas (the latter are usually 150-200 ng/mL or higher).


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!