Premature Ovarian Failure medical terminology definition

Also called: Ovarian insufficiency, POF, Primary ovarian insufficiency
Premature ovarian failure (POF) is when a woman’s ovaries stop working before she is 40. POF used to be called premature menopause. However, POF is not the same as menopause. Some women with POF still have occasional periods. Premature menopause is when periods stop before age of 40. This can be natural or caused by surgery, chemotherapy or radiation.