The normal value of follicle stimulating hormone varies from 1-9 u/L during the follicular and luteal phases, 6-26 u/L during ovulation, and 30-118 u/L during menopause. follicle stimulating hormone, also known as follicle stimulating hormone, is responsible for the secretion of estrogen and the maturation of follicles. a value below normal suggests a hypothalamic-pituitary lesion, while a value above normal suggests an ovarian lesion. The ratio of luteinizing hormone to follicle stimulating hormone can also be measured to assist in the diagnosis of polycystic ovary syndrome and can help in the diagnosis of precocious puberty through this test. If there is increased secretion and cyclic changes in follicle stimulating hormone and luteinizing hormone, it is considered true precocious puberty, while low levels and no cyclic changes are considered pseudoprecocious puberty.