You thought your periods were behind you. It has been more than a year since your last one, and then you notice spotting or bleeding. If you already know that you have fibroids, it is natural to wonder: Could they be causing this?
For women experiencing fibroids after menopause bleeding, the answer is not always straightforward. Fibroids can remain in the uterus after menopause and, in some situations, may contribute to bleeding. But new bleeding after menopause should not automatically be put down to fibroids, even if you have had them for years.
That does not mean the cause is necessarily serious. Most postmenopausal bleeding has a non-cancerous explanation. It simply means the bleeding deserves proper evaluation so that you know where it is coming from and what, if anything, needs to be done.
Yes, fibroids can sometimes be associated with bleeding after menopause, but they are not the only possible explanation.
Fibroids, also called uterine leiomyomas, are non-cancerous growths that develop from the muscle of the uterus. They are hormone-responsive, which is why their behaviour often changes around menopause.
As ovarian hormone production declines, fibroids usually stop growing or become smaller. For this reason, many women find that symptoms related to fibroids, such as heavy periods or pelvic pressure, improve after menopause. Fibroids do not necessarily disappear completely, however. Some remain present and may continue to cause symptoms.
The location of a fibroid can also matter. For example, a fibroid that projects towards the cavity of the uterus may be more likely to affect bleeding than one located elsewhere in the uterine wall.
The important point is this: fibroid bleeding after menopause is possible, but a fibroid should not be assumed to be the source of new bleeding without checking for other causes.
It also helps to be clear about where you are in the menopause transition. During perimenopause, hormone levels fluctuate and periods can become irregular, heavier or lighter. Menopause is confirmed retrospectively after 12 consecutive months without a menstrual period for another identifiable reason. Postmenopause refers to the years following menopause. (World Health Organization)
Once menopause is established, new vaginal bleeding is no longer considered a menstrual period.
There are several possible reasons for bleeding after menopause, and many are benign.
After menopause, lower estrogen levels can make the tissues of the vagina and the lining of the uterus thinner and more fragile. This is a common reason for spotting or bleeding. Understanding how estrogen production changes after menopause can also help explain why these tissues become more vulnerable to dryness, thinning and irritation.
Polyps of the cervix or uterus can also cause bleeding, as can changes in the endometrium, which is the lining inside the uterus.
Less commonly, postmenopausal bleeding can be associated with precancerous changes or cancers involving the uterus or other parts of the reproductive tract. This is why doctors take the symptom seriously even though most women who experience it will not have cancer.
The purpose of evaluation is not to assume the worst. It is to distinguish between the different possible causes rather than guessing from the bleeding pattern alone.
Having a previous diagnosis can sometimes make the explanation feel obvious.
You may think, “My fibroids caused bleeding before, so surely they are causing it again.”
But bleeding before menopause and bleeding after menopause are not evaluated in exactly the same way.
If you have uterine fibroids after menopause, your doctor may look at whether their size, location or appearance has changed. At the same time, they may need to assess the uterine lining and consider whether the bleeding could be coming from the cervix, vagina or another source.
This distinction matters because two things can exist at the same time. A woman may have fibroids that are still visible on an ultrasound while her bleeding is actually being caused by a polyp, thinning vaginal tissue or a change in the endometrium.
In other words, the presence of a fibroid is a piece of the clinical picture, not necessarily the final answer.
The first step is usually understanding exactly what has happened.
Your doctor may ask when your last natural period occurred, when the bleeding started, whether it has happened more than once, how much bleeding you have noticed and whether you have other symptoms. Your medications, use of menopausal hormone therapy, previous gynaecological history and other relevant health factors may also be discussed.
A pelvic examination may be appropriate to look for possible sources of bleeding involving the vagina or cervix.
A transvaginal ultrasound can provide information about the uterus, fibroids and endometrium. It involves placing a small ultrasound probe into the vagina to obtain images of the pelvic organs.
Depending on the findings and your individual circumstances, assessment of the endometrium may also involve taking a small tissue sample, known as an endometrial biopsy. In some cases, hysteroscopy may be recommended. This uses a thin camera to look inside the uterus and can help doctors investigate abnormalities within the uterine cavity.
Guidance on how postmenopausal bleeding is investigated continues to evolve. Current medical guidance recommends using a transvaginal ultrasound along with a small sample of tissue from the uterine lining as part of the initial evaluation for most women with postmenopausal bleeding.
However, the tests you need will depend on your symptoms, medical history and individual circumstances.
This does not mean that every woman will go through exactly the same sequence of tests. Your doctor will decide what is appropriate based on your history, examination and initial findings.
Any vaginal bleeding after established menopause should be discussed with a healthcare professional.
That includes bleeding that is:
Even a small amount is worth mentioning. (nhs.uk)
Seek more prompt medical attention if the bleeding is heavy or you are experiencing repeated bleeding, significant pelvic or abdominal pain, dizziness, weakness, fainting or feeling generally unwell.
If you are unsure whether the blood is actually vaginal, mention that too. Sometimes bleeding from the urinary or digestive tract can initially be mistaken for vaginal bleeding.
What happens after the evaluation depends entirely on what is found.
If the bleeding is related to thinning and dryness of vaginal tissues, management will be very different from treatment for a uterine polyp or an abnormality of the endometrium.
If your fibroids are thought to be contributing to the symptoms, your doctor will consider factors such as their size and location, the severity of your symptoms, whether they have changed and your overall health. Not every fibroid after menopause requires treatment.
This is why it is better to investigate first rather than jumping straight to a treatment decision. Once the source of the bleeding is clearer, you and your doctor can discuss whether treatment is needed and which option makes sense for you.
Fibroids often become smaller after menopause, although they can remain present and occasionally continue to cause symptoms.
If you experience fibroids after menopause bleeding, do not automatically assume that the fibroids are responsible. There are several possible causes of postmenopausal bleeding, many of which are benign, but the cause should be properly assessed.
Most importantly, do not panic and do not dismiss it. Getting checked can help you understand what is causing the bleeding and what, if anything, needs to happen next.
Want more clarity around your hormones, symptoms and menopause health?
Download the MIROR App on the Google Play Store or Apple App Store for expert-led guidance and personalized support through perimenopause and menopause.
They can. Fibroids that remain after menopause, particularly those affecting the uterine cavity, may sometimes contribute to bleeding. However, new postmenopausal bleeding should not be attributed to fibroids without evaluating other possible causes.
Yes. Fibroids commonly stop growing or become smaller after menopause as ovarian hormone levels decline. They may not disappear completely, however, and some women continue to have fibroids after menopause. (
No. Most women investigated for postmenopausal bleeding do not have cancer, and common causes include thinning of vaginal or uterine tissues and benign polyps. Nevertheless, any bleeding after established menopause should be evaluated because occasionally it can indicate a condition requiring further treatment.
Evaluation may involve a pelvic examination, transvaginal ultrasound and assessment of the uterine lining, including endometrial sampling when appropriate. Some women may also need hysteroscopy. Which tests are recommended depends on the individual's history and clinical findings.
Ordinary uterine fibroids are benign growths and are not generally considered to transform into uterine sarcoma. A rare uterine cancer called leiomyosarcoma can resemble a fibroid, but it is considered a separate disease rather than the usual progression of a benign fibroid. If a uterine mass behaves unexpectedly after menopause, such as showing concerning growth or causing new symptoms, a doctor may recommend further assessment to understand what is happening.
