Early Menopause

What Is Early Menopause?

The average age at which women typically experience menopause is around age 51. Early menopause, also referred to as premature menopause, premature ovarian failure (POF) and primary ovarian insufficiency (POI), occurs when a woman experiences menopause prior to turning age 40. It can occur as a result of genetic abnormalities that affect the ovaries, with family history playing a role; certain medical conditions can also cause early menopause.

Early Menopause and Premature Ovarian Aging

Dr. Gleicher explains the difference between early menopause and premature ovarian aging, as well as how each is treated.

Between 10 and 20% of women who experience early menopause have a family history of early menopause. In many other cases, it is the result of a health condition. For example, early menopause is highly associated with thyroid disease, or surgical removal of ovaries. Women who have undergone chemotherapy or radiation treatments may also experience early menopause.

At CHR, early menopause has been a major focus of research and clinical care. Early menopause is the end stage of usually a lengthy process of early premature ovarian aging (POA), a condition where a woman’s ovarian reserve depletes much earlier than is normal. Our preference, of course, is to see patients before they have reached the end stage, which is POF, because at an earlier POA stage we can still be successful with fertility treatments for women moving toward early menopause. The secret of diagnosing POA early enough is the recognition that even a relatively young woman can have diminished ovarian reserve(DOR) for her specific age group!


There are several major known causes of early menopause. The table below lists them by type of causes:

Type of Causes Cause
  • Autoimmune disorders
  • Chromosomal abnormality of the X chromosome, like FMR1 premutation range genotype and Turner Syndrome
Surgical Causes
  • Oophorectomy (surgeries that completely remove ovaries)
  • Surgical damages to the ovaries
Other therapeutic (iatrogenic) causes
  • Radiation therapy
  • Chemotherapy
  • Tamoxifen
  • There is some evidence that women with a family history of early menopause experience early menopause themselves.
  • Viral infections during fetal development that affect ovarian development.

Read more about Early Menopause


Early menopause is the last stage of usually a lengthy process of premature ovarian aging (POA)...

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Last Updated: November 15, 2014

Additional Resources

Further Evidence for the Inadequacy of PGS – News from the ... This article is a part of the November 2015 issue of CHR VOICE, our monthly newsletter. An oral presentation by


Dr. Gleicher on “Beat Infertility” podcast CHR’s Dr. Norbert Gleicher answers questions about a host of infertility issues, including IVF, PCOS, Premature Ovarian Aging (POA), DOR,

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1/3 of women who have been told they need egg donation actually wind up conceiving at the CHR with their own eggs.