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  2. Luteinizing hormone - Wikipedia

    en.wikipedia.org/wiki/Luteinizing_hormone

    LH levels are normally low during childhood and in women, high after menopause. Since LH is secreted as pulses, it is necessary to follow its concentration over a sufficient period of time to get proper information about its blood level.

  3. Functional hypothalamic amenorrhea - Wikipedia

    en.wikipedia.org/wiki/Functional_hypothalamic...

    Significant weight gain can lead to obesity and insulin resistance, which mimics low insulin levels via functional hypoinsulinaemia. [12] As insulin assists in regulating the HPO axis, these low, or functionally low, levels of insulin can cause FHA, as mice models suggest that low insulin levels decrease levels of circulating LH. [12]

  4. Hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypogonadism

    Men with low serum testosterone levels should have other hormones checked, particularly luteinizing hormone to help determine why their testosterone levels are low and help choose the most appropriate treatment (most notably, testosterone is usually not appropriate for secondary or tertiary forms of male hypogonadism, in which the LH levels are ...

  5. Kallmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Kallmann_syndrome

    This leads to olfactory problems such as anosmia, optic defects like color blindness, and results in hypothalmic deficiencies associated with low levels of LH, affecting sex hormone testosterone in males or estrogen and progesterone in females. Diagnosis normally occurs during teenage years when puberty fails to start. [4]

  6. Amenorrhea - Wikipedia

    en.wikipedia.org/wiki/Amenorrhea

    If a uterus is present, LH and FSH levels are used to make a diagnosis. [13] Low levels of LH and FSH suggest delayed puberty or functional hypothalamic amenorrhea. [13] Elevated levels of FSH and LH suggest primary ovarian insufficiency, typically due to Turner syndrome. [13] Normal levels of FSH and LH can suggest an anatomical outflow ...

  7. What Is Low Testosterone & What Causes It? - AOL

    www.aol.com/low-testosterone-causes-125700734.html

    It is identified by lab tests that show low testosterone accompanied by low to normal FSH and LH levels. Remember, you may have low T if your total testosterone levels are below 300 ng/dL and you ...

  8. Hypogonadotropic hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypogonadotropic_hypogonadism

    This is because KISS1 is the mediator for the feedback loop in the HPG axis allowing low levels of sex steroid to stimulate GnRH secretion from the hypothalamus. [ 10 ] Congenital hypogonadotropic hypogonadism, CHH, is a genetically, as well as clinically, heterogenous disorder stemming from over 25 causal genes identified to date, [ 11 ] with ...

  9. Hypothalamic–pituitary–gonadal axis - Wikipedia

    en.wikipedia.org/wiki/Hypothalamic–pituitary...

    At birth FSH and LH levels are elevated, and females also have a lifetime supply of primary oocytes. These levels decrease and remain low through childhood. During puberty the HPG axis is activated by the secretions of estrogen from the ovaries or testosterone from the testes .