Related conditions * Premature<unk>  failure: Defined as no menses for six months before the age of forty due to any cause. Often diagnosed by elevated gonadotropin (Follicle-stimulating hormone (FSH) and LH) levels. In some cases (more so in younger women)<unk>  function and ovulation can spontaneously resume. With POF up to 50% of women may ovulate once in any given year and 5–10% may become pregnant. POF is often associated with autoimmune diseases. * Premature menopause: A outdated synonym for premature<unk>  failure. The term encompasses premature menopause due to any cause, including surgical removal of the ovaries for any reason. Early menopause and premature<unk>  failure are no longer considered to be the same condition.
Poor ovarian reserve
Male pregnancy
Pregnancy
Lactational amenorrhea
Anovulation
Estrogen-dependent condition
Androgen-dependent condition
Antiestrogen withdrawal response