Why Should Any Bleeding After Menopause Always Be Checked?

Bleeding after menopause, meaning any vaginal bleeding after 12 months without a period, should be checked by a clinician. Many causes are benign, such as thinning vaginal tissue, polyps or hormone therapy. But bleeding can also be an early sign of changes in the uterine lining, including cancer, and you cannot tell which from the bleeding alone. This article covers common causes, what an evaluation involves, and which symptoms need urgent care.

Bleeding after menopause: what counts and why it gets checked

Menopause is usually defined as 12 months in a row without a menstrual period. MedlinePlus describes it as the point when the ovaries stop releasing eggs and hormone levels fall. After that point, you are not expected to bleed. Spotting, pink or brown discharge, a single episode of red blood or a light stain on tissue paper all count, even if it happened once and stopped.

The reason clinicians want to see you is not that the bleeding is likely to be serious. In many cases it is not. The reason is that the same symptom can come from a minor problem or from a condition that is easier to treat when found early, and appearance, amount and pain do not reliably separate the two. Light bleeding can come from a serious cause, and heavy bleeding can come from a harmless one.

MedlinePlus has a general page on vaginal bleeding that notes bleeding after menopause as a reason to contact a health care provider.

Common causes of postmenopausal bleeding

Several different problems can cause bleeding after menopause. Which one applies to you is something your clinician works out by combining your history, an examination and testing.

Thin, fragile tissue

With lower estrogen, the lining of the vagina and the uterus can become thinner and more easily irritated. This is often called atrophy. It can cause light bleeding, especially after sex or an exam. It frequently comes with dryness or discomfort, which is covered in our article on vaginal dryness and painful sex after menopause.

Polyps

Polyps are soft, usually noncancerous growths that can form in the uterine lining or on the cervix. They can cause spotting or irregular bleeding. Some are removed because they may bleed repeatedly, and the removed tissue is often examined under a microscope.

Hormone therapy

Some people on menopausal hormone therapy have bleeding, particularly in the first months or with certain regimens. MedlinePlus has a page on hormone therapy for menopause. If you take hormones, tell your prescriber about any bleeding so they can decide whether it fits your regimen or needs further testing. Do not change the dose or timing on your own.

Thickened uterine lining and other uterine conditions

The lining of the uterus can thicken, a finding called endometrial hyperplasia, which in some cases is associated with a higher chance of later developing cancer. Fibroids, which are noncancerous muscle growths, are usually associated with premenopausal years and often shrink after menopause, but they can still be part of the picture. See MedlinePlus on uterine fibroids.

Cancer

Endometrial (uterine) cancer is a much less common cause than the everyday ones above, and bleeding alone does not establish it. However, abnormal bleeding is often the symptom that leads to its diagnosis, and that is the main reason every episode is evaluated. Cervical or vaginal cancers are less often the source.

Other sources

Bleeding that seems vaginal can come from the urinary tract or the rectum. Some medicines that affect clotting, such as blood thinners, may make bleeding more likely from any of these sources, but they do not remove the need to find out where the blood is coming from. Do not stop a prescribed blood thinner on your own; ask the prescriber. If you take a blood thinner and have heavy vaginal bleeding that does not ease, or bleeding from other places at the same time, such as black or bloody stools or blood in your urine or vomit, treat it as an emergency, call 911 and do not drive yourself.

What happens at the visit

Your clinician will ask when the bleeding started, how much there was, whether it came with pain, and which medicines and hormones you use. Expect a pelvic exam and often a Pap-type cervical check if it is due. Clinicians combine history, examination and testing, and the exact steps vary.

• Transvaginal ultrasound: a small probe placed in the vagina gives pictures of the uterus and measures the thickness of the lining.
• Endometrial biopsy: a thin tube collects a small sample of the lining, usually in the office. It can cause cramping for a short time, and some people take an over-the-counter pain reliever beforehand if their clinician agrees.
• Hysteroscopy: a thin camera is passed into the uterus to look at the lining directly and sometimes remove a polyp.
• Other tests: blood tests, or a check of the urine or rectum, if another source is suspected.

Your clinician decides which of these fit your situation. A normal first test may still be followed by further evaluation if the bleeding continues, so tell them if it comes back.

Treatment depends on the cause

Treatment varies widely. Tissue thinning may be managed with local vaginal estrogen or moisturizers if your clinician finds them appropriate. Polyps are often removed. A thickened lining may be treated with hormone medicines or sometimes surgery. If cancer is found, a gynecologic oncologist usually plans care, and surgery such as hysterectomy is a common part of it. Outcomes vary, and finding a problem at an earlier stage is generally associated with more treatment options.

Bleeding that is not postmenopausal bleeding

If you are still having periods, even irregular ones, you may be in the transition rather than past menopause. Bleeding in that stage has a different list of causes; see heavy periods: when is it too much blood? and MedlinePlus on menstruation. Cysts are another pelvic finding that can come up during evaluation, covered in ovarian cysts: which ones are harmless and which need treatment?. If you are unsure whether you have reached menopause, ask your clinician. Bleeding after only a few months without a period is still worth mentioning.

What to do while you wait for your appointment

• Note the date, how much blood there was (spotting, a pad, soaked), and its color.
• Write down any pain, odd discharge, fever, weight change or pain with sex.
• Bring a list of medicines, including hormones, supplements and blood thinners.
• Use a pad rather than a tampon if you are bleeding, so the amount is easier to judge.
• Do not wait for the bleeding to happen a second time. One episode is enough reason to call.

Many people feel embarrassed or hope it was a one-off. A single episode that stops is still reasonable to report, and clinicians see this often.

Can you lower your risk?

Not every cause can be prevented. Factors associated with a higher chance of endometrial changes include long exposure to estrogen without balancing progesterone, excess body weight and certain tamoxifen or hormone treatments. Talk with your clinician about your own risk and any hormone therapy, so they can decide what is appropriate. Reporting bleeding promptly is the step within your control.

When to Seek Medical Care