Does norethindrone suppress FSH, LH completely?
If not, what can be possible causes for a postmenopausal woman to have FSH, LH < 0.3 with low E2, and being asymptomatic and doing well otherwise? (Norethindrone is for endometriosis.) Thank you!
2 Answers
Mednet MemberInvited Expert
Endocrinology · Kaiser Permanente Oakland Medical Center Endocrinology
Answered on
I don't think progesterone alone would suppress LH and FSH completely so other pituitary hormones should be checked and if low, check MRI of sella. Also check for other exogenous hormone use/OTC supplements.
Join for free or sign in to see the full answer
Mednet MemberInvited Expert
Endocrinology · UCLA
Answered on
Agree, and also remember to check for biotin-containing supplements that can lead to falsely decreased FSH/LH.
Join for free or sign in to see the full answer