Menopause & Midlife
Bleeding After Menopause: Causes, Tests and When to Worry
Any vaginal bleeding after menopause, even one episode of light spotting, should be checked by a clinician. Most of the time the cause is benign, like thinning of the vaginal or uterine lining or a polyp. But postmenopausal bleeding is also the main warning sign of endometrial (uterine) cancer, which turns up in roughly 1 in 10 people who have it. Getting checked early means early treatment if cancer is the cause.
Two reactions are really common here. One is panic. The other is waiting to see if it happens again, especially when it was "just a little brown." Neither helps. The right move is a calm phone call to book an appointment within the next couple of weeks.
What counts as bleeding after menopause?
You reach menopause after 12 months in a row without a period. After that, any of these count:
- Spotting or light bleeding
- Pink, red or brown discharge
- Bleeding after sex
- Bleeding that looks like a period
How light it is doesn't matter, and neither does whether it happened only once. Not sure if the blood came from the vagina, the urinary tract or the rectum? That's a fair question, and a clinician can sort it out.
What causes bleeding after menopause?
| Cause | How common | What it is |
|---|---|---|
| Vaginal or endometrial atrophy | Very common | Thin, dry tissue from low estrogen that bleeds easily |
| Endometrial or cervical polyps | Common | Usually benign growths of tissue |
| Hormone therapy | Common | Expected or unexpected bleeding on menopause hormones |
| Endometrial hyperplasia | Less common | Overgrowth of the uterine lining that can become cancer |
| Endometrial cancer | About 1 in 10 cases | Cancer of the uterine lining |
| Fibroids | Less common after menopause | Noncancerous muscle growths |
| Infection | Less common | Inflammation of the cervix or uterus |
| Cervical or vulvar cancer | Rare | Other gynecologic cancers |
| Blood thinners | Can contribute | May make bleeding from another cause more likely |
Vaginal atrophy (genitourinary syndrome of menopause)
After menopause, lower estrogen makes vaginal tissue thinner, drier and more fragile. It can tear or bleed with sex or a pelvic exam. Other signs: dryness, burning, pain with sex and frequent urinary tract infections. Treatments include vaginal moisturizers, lubricants and low-dose vaginal estrogen. Many people don't bring these symptoms up because they're embarrassed, but they're common and very treatable.
Polyps
Small growths in the lining of the uterus or cervix. Most are benign, but they can bleed and are usually removed and tested.
Hormone therapy
On cyclic hormone therapy, monthly withdrawal bleeding is expected. On continuous combined therapy, irregular spotting is common in the first few months. Bleeding that's heavy, unexpected or lasts beyond about six months should be checked.
Is bleeding after menopause a sign of cancer?
It can be, which is why it always gets evaluated. Postmenopausal bleeding is the most common symptom of endometrial cancer. About 9 in 10 people with endometrial cancer have abnormal bleeding.
The reassuring part: because this symptom shows up early, most endometrial cancers found this way are at an early stage, when treatment works best.
Your risk is higher if you have obesity, diabetes, PCOS or Lynch syndrome, take tamoxifen, or took estrogen without a progestogen. See Lynch syndrome in women if colon or uterine cancer runs in your family.
What the appointment and tests are like
Your clinician will ask about the bleeding (when, how much, what color), your medicines and your health history, then do a pelvic exam. Next steps usually include one or both of these.
Transvaginal ultrasound
A slim probe in the vagina measures the thickness of the uterine lining (endometrium). It feels like pressure and usually takes 10 to 15 minutes. According to ACOG, a lining of 4 mm or less in someone with postmenopausal bleeding makes cancer very unlikely. If bleeding continues anyway, more testing is still needed.
Endometrial biopsy
A thin, flexible tube passes through the cervix to take a small tissue sample. It takes a few minutes in the office and causes cramping, sometimes strong for a short time. Ask whether you can take an over-the-counter pain reliever beforehand, and plan a low-key rest of the day. Many clinicians go straight to biopsy, especially when risk is higher. Results often come back within about a week.
Other tests
- Hysteroscopy, a thin camera to look inside the uterus
- D&C, which removes tissue from the lining for testing
- Saline infusion sonography, an ultrasound with fluid to find polyps
- A Pap or HPV test if you're due
What to write down before your visit
- The date the bleeding started and how many days it lasted
- Color and amount (spotting on tissue, a pantyliner, a pad)
- Whether it followed sex or a pelvic exam
- Every medicine and supplement, especially hormones, tamoxifen and blood thinners
- The date of your last period, if you remember roughly when menopause happened
- Family history of uterine, ovarian or colon cancer
How is postmenopausal bleeding treated?
It depends on the cause:
- Atrophy: vaginal moisturizers, lubricants or low-dose vaginal estrogen
- Polyps: removal, often with hysteroscopy
- Hyperplasia without atypia: progestin therapy and follow-up biopsies
- Atypical hyperplasia: usually hysterectomy
- Cancer: usually surgery, ideally with a gynecologic oncologist
When to see a doctor
Call your gynecologist or primary care clinician to schedule an evaluation if you have:
- Any bleeding or spotting after menopause, even once
- Pink, brown or watery discharge after menopause
- Bleeding after sex
- Unexpected bleeding on hormone therapy, or bleeding that continues more than about six months after starting it
Get urgent care for heavy bleeding that soaks a pad an hour, dizziness or fainting.
Don't wait to see if it happens again. When you call, say "I'm postmenopausal and I've had bleeding," which helps the office prioritize you. Search our directory for gynecologists across New York, including Staten Island and Queens.
Frequently asked questions
Is bleeding after menopause always cancer?
No. Most postmenopausal bleeding is caused by benign conditions such as thinning of the vaginal or uterine lining, polyps or hormone therapy. But about 1 in 10 people with postmenopausal bleeding have endometrial cancer, so it always needs evaluation.
Is light spotting after menopause normal?
No. Even light spotting or pink or brown discharge after menopause should be checked by a clinician.
What counts as postmenopausal bleeding?
Menopause is 12 months in a row without a period. Any vaginal bleeding after that point counts as postmenopausal bleeding.
Can stress cause bleeding after menopause?
Stress isn't a recognized cause of postmenopausal bleeding. Don't assume bleeding is from stress; get it checked.
Is bleeding normal on hormone therapy?
Some bleeding is expected on certain hormone therapy schedules, especially in the first months. Bleeding that's heavy, unexpected or continues beyond about six months should be evaluated.
Sources
- ACOG — The Role of Transvaginal Ultrasonography in Evaluating the Endometrium of Women With Postmenopausal Bleeding (Committee Opinion)
- National Cancer Institute — Endometrial Cancer (PDQ)
- The Menopause Society — Hormone Therapy Position Statement
- MedlinePlus — Vaginal Bleeding After Menopause
- American Cancer Society — Signs and Symptoms of Endometrial Cancer
This article is for general education and is not medical advice. It does not replace an evaluation by a licensed clinician who knows your history. If you think you have a medical emergency, call 911.