Now, sometimes secondary amenorrhea can occur because of premature ovarian failure - which is when the ovarian follicles undergo accelerated atresia and get depleted before the age of 40, resulting in early menopause.

有时，继发性经是卵巢早衰，当卵巢滤泡锁，在40岁前消耗殆尽，造成提前绝经。