Vaginal Bleeding - Post Menopause

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What were the reasons for your post-menopausal vaginal bleeding?

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What conditions cause vaginal bleeding after menopause or abnormal vaginal bleeding in women who are not ovulating regularly?

Many conditions can interfere with the proper function of female hormones that are necessary for ovulation. For example, many conditions or circumstances may cause oligomenorrhea (reduction in the number of menstrual periods and/or amount of flow than usual) such as:

  • If a woman has chronic medical illnesses or is under significant medical or emotional stress, she can begin to have a loss of her menstrual periods.
  • Malfunction of a particular part of the brain, called the hypothalamus, can cause oligomenorrhea.
  • Anorexia nervosa is an eating disorder associated with excessive thinness that causes many serious medical consequences as well as oligomenorrhea or amenorrhea (the absence of menstrual periods).
  • Polycystic ovarian syndrome (PCO or POS) is a hormonal problem that causes women to have a variety of symptoms that include irregular or no menstrual periods, acne, obesity, infertility, and excessive hair growth; that are detectable with blood tests.

The complete loss of ovulation is referred to as anovulation. Since ovulation allows the body to maintain an adequate supply of progesterone, anovulation is a condition in which a woman's hormonal balance is tipped toward too much estrogen and not enough progesterone. The excess estrogen stimulates the growth of the lining of the uterus. The result is that the lining of the uterus becomes too thick, which eventually leads to an increased risk of uterine pre-cancer or uterine cancer over many years. In order to replace progesterone and establish a proper hormonal balance, doctors will prescribe either progesterone to be taken at regular intervals, or an oral contraceptive that contains progesterone. Such treatment dramatically decreases the risk of uterine cancer in women who do not ovulate. Because uterine cancer results from many years of anovulation, any woman with prolonged anovulation needs to be treated to avoid developing uterine cancer.

Women who are postmenopausal (those who have not had a menstrual period for 12 consecutive months or more) should not experience vaginal bleeding. Any vaginal bleeding is considered abnormal in postmenopausal women. Women who are taking combined estrogen and progesterone hormone therapy (HRT or HT) may experience some light, irregular vaginal bleeding during the first six months of treatment. Likewise, postmenopausal women who are taking a cyclic hormone regimen (oral estrogen and a progestin for 10-12 days per month) may experience some vaginal bleeding that is similar to a menstrual period for a few days each month.

Postmenopausal women who experience heavy or prolonged vaginal bleeding while on hormone therapy should always see a doctor to rule out more serious causes of vaginal bleeding. Less frequent but serious causes of vaginal bleeding in postmenopausal women include endometrial cancer or hyperplasia (overgrowth of the lining tissues of the uterus, which can be precancerous in some cases).

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See what others are saying

Comment from: Rmclady, 55-64 Female (Patient) Published: June 04

I have been taking Prempro for hot flashes and night sweats. After having been taking it for 3 weeks, I started to have a period. I am bleeding now for the past 7 days.

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