Decrease in ovarian follicular function
Education

Premature Ovarian Insufficiency: Understanding Early Menopause

Premature ovarian insufficiency (POI) occurs when the ovaries no longer work effectively in women under the age of 40. Different terms are used interchangeably for POI, such as ‘premature menopause’ and ‘primary ovarian failure’. It is a fairly common condition, affecting around 1% of people and can sometimes be a cause of fertility problems.