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Persistently high LH levels are indicative of situations where the normal restricting feedback from the gonad is absent, leading to a pituitary production of both LH and FSH. While this is typical in menopause, it is abnormal in the reproductive years.
[10] [2] At the physiological level, menopause happens because of a decrease in the ovaries' production of the hormones estrogen and progesterone. [1] While typically not needed, measuring hormone levels in the blood or urine can confirm a diagnosis. [11] Menopause is the opposite of menarche, the time when periods start. [12]
Testing serum LH and FSH levels are often used to assess hypogonadism in women, particularly when menopause is believed to be happening. These levels change during a woman's normal menstrual cycle, so the history of having ceased menstruation coupled with high levels aids the diagnosis of being menopausal.
20-24 years old: 409-558 ng/dL. 25-29 years old: 413-575 ng/dL ... are commonly associated with menopause in women. ... It is identified by lab tests that show low testosterone accompanied by low ...
Dr. Goldman says menopause is defined as one year from the final menstrual period, and the average age is 51.5, though can happen earlier or later depending on the individual.
The diagrams below take inter-cycle and inter-woman variability into account in displaying reference ranges for estradiol, progesterone, FSH and LH. Levels of estradiol (the main estrogen), progesterone, luteinizing hormone and follicle-stimulating hormone during the menstrual cycle. [88]
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