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LH


Results and Values

What do the test results mean?

Normal values for males are 7 to 24 U/L (units per liter) and for females 6 to 30 U/L.

Greater-than-normal levels of LH may be found in the following conditions in women:

  • early onset of puberty, known as precocious puberty
  • Klinefelter's syndrome, a genetic disorder
  • menopause
  • polycystic ovary disease
  • premature failure of the ovaries caused by a genetic defect or related to radiation treatment
  • Turner's syndrome, a genetic disorder
  • Greater-than-normal levels of LH may be found in men with nonfunctioning testes, or absence of testes, called anorchia.

    Lower-than-normal levels in women may indicate:

  • anorexia nervosa, an eating disorder
  • breast-feeding
  • bulimia, an eating disorder
  • exercise-induced amenorrhea, or absence of menstruation
  • infertility
  • ovarian cysts, or fluid-filled sacs on the ovaries
  • the use of oral contraceptives, or birth control pills
  • Lower-than-normal levels in men may be seen with:

  • hypothalamic hypogonadism, which is caused by a disorder of the hypothalamus
  • multiple endocrine neoplasia, or tumors of the endocrine glands

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