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  2. Follicle-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Follicle-stimulating_hormone

    The most common reason for high serum FSH concentration is in a female who is undergoing or has recently undergone menopause. High levels of FSH indicate that the normal restricting feedback from the gonad is absent, leading to an unrestricted pituitary FSH production. FSH may contribute to postmenopausal osteoporosis and cardiovascular disease ...

  3. Sertoli cell-only syndrome - Wikipedia

    en.wikipedia.org/wiki/Sertoli_cell-only_syndrome

    A tiny fraction of patients may still have measurable sperm levels. [1] About 90% of those with Sertoli cell-only syndrome have elevated FSH levels, usually two to three times the normal amount. [1] Testicular biopsy is the only way to confirm non-obstructive azoospermia and Sertoli cell-only syndrome. [1]

  4. Controlled ovarian hyperstimulation - Wikipedia

    en.wikipedia.org/wiki/Controlled_ovarian_hyper...

    When used in medium dosage, a long-acting FSH preparation has the same outcome in regard to live birth rate and risk of ovarian hyperstimulation syndrome as compared to daily FSH. A long-acting FSH preparation may cause decreased live birth rates compared to daily FSH when using low dosages (60 to 120 μg of corifollitropin alfa). [16]

  5. Primary ovarian insufficiency - Wikipedia

    en.wikipedia.org/wiki/Primary_ovarian_insufficiency

    The diagnosis is based on age less than forty, amenorrhea, and two elevated serum follicle-stimulating hormone (FSH) and decreased estrogen measurements at one-month intervals. [10] The anterior pituitary secretes FSH and LH at high levels to try to increase the low estrogen levels that are due to the dysfunction of the ovaries.

  6. Kallmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Kallmann_syndrome

    Some cases of KS/HH appear to reverse during adult life where the HPG axis resumes its normal function and GnRH, LH, and FSH levels return to normal levels. This occurs in an estimated 10 to 22% of people, primarily cases of normosmic congenital hypogonadotropic hypogonadism (CHH) rather than KS cases and only found in people who have undergone ...

  7. Fertility testing - Wikipedia

    en.wikipedia.org/wiki/Fertility_testing

    FSH levels are elevated early in the cycle of women who have lower ovarian reserve, because their follicles do not produce enough estrogen to inhibit FSH production, [14] therefore high levels early on in a woman's menstrual cycle can indicate lower ovarian reserve and lower likelihood of retrieving eggs for IVF.

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