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
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
bulimia, an eating disorder
exercise-induced amenorrhea, or absence of menstruation
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