causes of hypogonadotropic
Hypogonadotropic hypogonadism (HH) is a form of hypogonadism that is due to a problem with the pituitary gland or hypothalamus. HH is caused by a lack of hormones that normally stimulate the ovaries or testes: gonadotropin-releasing hormone (GnRH), follicle stimulating hormone (FSH) and luteinizing hormone (LH).