Menopause

1. Take the Menopause Quiz
2. Menopause and Perimenopause Slideshow
3. Osteoporosis Slideshow Pictures

Medical Author:

Melissa Conrad Stöppler, MD, Chief Medical Editor

Melissa Conrad Stöppler, MD, Chief Medical Editor

Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

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Medical Editor:

William C. Shiel Jr., MD, FACP, FACR

William C. Shiel Jr., MD, FACP, FACR

Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

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• Menopause Overview
• Menopause Causes
• Menopause Symptoms
• When to Seek Medical Care
• Menopause Diagnosis
• Menopause Treatment
• Menopause Medications, Lifestyle Changes, and Home Remedies
• Other Therapy for Menopause
• Prevention
• Synonyms and Keywords
• Author and Editor
• Read more on Menopause from Healthwise
• Menopause FAQs
• Viewer Comments: Menopause - Symptoms

Menopause, the time when a woman stops having menstrual periods, is not a disease or an illness. It is a transition between two phases of a woman's life.

Many women experience a variety of symptoms as a result of the hormonal changes associated with the transition through menopause. Around the time of menopause, women often lose bone density and their blood cholesterol levels may worsen, increasing their risk of heart disease.

Premature menopause: The average age of US women at the time of menopause is 51 years. The most common age range at which women experience menopause is 48-55 years. If menopause occurs in a woman younger than 40 years, it is considered to be premature. Menopause is considered late if it occurs in a woman older than 55 years. For most women, menopause is a normal occurrence.

• Menopause is more likely to occur at a slightly earlier age in women who smoke, have never been pregnant, or live at high altitudes.
• If premature menopause occurs, a health care professional will check for other medical problems. About 1% of women experience premature menopause.

Perimenopause: The hormonal changes associated with menopause actually begin prior to the last menstrual period, during a three to five year period called the perimenopause. During this transition, women may begin to experience menopausal symptoms and may lose bone density, even though they are still menstruating.

Surgical menopause: Surgical menopause is menopause induced by the removal of the ovaries. Women who have had surgical menopause often have a sudden and severe onset of the symptoms of menopause.

Menopause occurs due to a complex series of hormonal changes. Associated with the menopause is a decline in the number of functioning eggs within the ovaries. At the time of birth, most females have about 1 to 3 million eggs, which are gradually lost throughout a woman's life. By the time of a girl's first menstrual period, she has an average of about 400,000 eggs. By the time of menopause, a woman may have fewer than 10,000 eggs. A small percentage of these eggs are lost through normal ovulation (the monthly cycle). Most eggs die off through a process called atresia (the degeneration and subsequent resorption of immature ovarian follicles - fluid filled cysts that contain the eggs).

• Normally, FSH, or follicle-stimulating hormone (a reproductive hormone), is the substance responsible for the growth of ovarian follicles (eggs) during the first half of a woman's menstrual cycle. As menopause approaches, the remaining eggs become more resistant to FSH, and the ovaries dramatically reduce their production of estrogen.
• Estrogen affects many parts of the body, including the blood vessels, heart, bone, breasts, uterus, urinary system, skin, and brain. Loss of estrogen is believed to be the cause of many of the symptoms associated with menopause. At the time of menopause, the ovaries also decrease their production of testosterone-a hormone involved in the libido, or sexual drive.

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