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Secondary amenorrhea occurs when a woman who has been having normal menstrual cycles stops getting her periods for 6 or more months.
Amenorrhea is when a woman does not get her monthly menstrual cycle, or period.
Amenorrhea - secondary; No periods - secondary; Absent periods - secondary; Absent menses - secondary; Absence of periods - secondary
Women who are pregnant, breastfeeding, or in menopause are not considered to have secondary amenorrhea.
Women who are taking birth control pills or receive hormone shots such as Depo-Provera may not have any monthly bleeding. When they stop taking these hormones, their periods may not return for more than 6 months.
You are more likely to have amenorrhea if you:
Other causes include:
The following drugs may also cause missed periods:
Also, procedures such as a dilation and curettage (D and C) can lead to scar tissue formation that may cause a woman to stop menstruating. This is called Asherman syndrome. Scarring may also be caused by some severe pelvic infections.
Other symptoms that can occur with secondary amenorrhea include:
If amenorrhea is caused by a pituitary tumor, there may be other symptoms related to the tumor, such as vision loss.
A physical exam and pelvic exam must be done to rule out pregnancy. A pregnancy test will be done.
Blood tests may be done to check hormone levels, including:
Other tests that may be performed include:
Treatment depends on the cause of the amenorrhea. Normal monthly periods usually return after the condition is treated.
For example, if the primary disorder is hypothyroidism, amenorrhea will be cured when it is treated with thyroid supplements.
If the primary cause is obesity, vigorous exercise, or weight loss, treatment may include a change in exercise routine or weight control.
The outlook depends on the cause of amenorrhea. Most of the conditions that cause secondary amenorrhea will respond to treatment.
Complications depend on the cause of the condition. Amenorrhea may be harmless, or it may be associated with overgrowth of the uterine lining (endometrial hyperplasia). This can sometimes lead to uterine cancer.
There may be other complications, depending on the cause of the amenorrhea.
Call for an appointment with your primary health care provider or OB/GYN provider if you have missed more than one period so that you can get diagnosed and treated, if necessary.
Prevention depends on the cause. For example, moderate exercise instead of extreme exercise, weight control, and other measures may be helpful.
Lobo RA. Abnormal uterine bleeding: Ovulatory and anovulatory dysfunctional uterine bleeding, management of acute and chronic excessive bleeding. In: Katz VL, Lentz GM, Lobo RA, Gershenson DM, eds. Comprehensive Gynecology. 5th ed. Philadelphia, PA: Mosby Elsevier; 2007:chap 37.
Master-Hunter T, Heiman DL. Amenorrhea: evaluation and treatment. Am Fam Physician. 2006;73(8):1374-1382.