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Abstract
We conducted a study of the basal levels of gonadotropins in 38 patients with Turner's syndrome ,14 of whom were using hormone replacement therapy (HRT). The gonadotropin levels were compared with pubertal development and HRT. Seven patients had presented spontaneous menarche; five patients maintained their periods and normal gonadotropin levels ,and two developed secondary amenorrhea and high gonadotropin levels. The majority of patients on HRT had high gonadotropin levels. Follicle stimulating hormone (FSH) levels were significantly lower (p = 0.001) in patients with breast development at stage 5, regardless of whether the patient had undergone a spontaneous or a hormonally induced puberty. We concluded that gonadotropin levels are normal in those patients with spontaneous periods ,and are high in most patients on HRT; and that FSH levels are significantly lower in those patients with breasts at stage 5.