Menopause · Bleeding

Period after menopause: what postmenopausal bleeding actually means.

Menopause is defined as 12 consecutive months without a period. Any bleeding after that milestone — from a single pink spot on toilet paper to a full flow — is postmenopausal bleeding, and it always requires evaluation.

The short answer

A "period after menopause" is not a period. Once the ovaries have stopped ovulating for a full year, the uterus no longer produces cyclical bleeding. Any bleeding after that point is medically classified as postmenopausal bleeding (PMB). Most causes are benign — but roughly 1 in 10 cases represents endometrial cancer, which is highly curable when caught early. That is why every episode warrants a same-week phone call to your clinician.

The seven most common causes

Vaginal or endometrial atrophy (~60–70%): low estrogen thins the vaginal and uterine lining, making fragile capillaries prone to bleeding after intercourse, exercise, or even a bowel movement.
Endometrial or cervical polyps (~10–15%): benign overgrowths of tissue that bleed intermittently.
Hormone therapy (~5–10%): expected on sequential HRT; abnormal if persistent on continuous combined HRT beyond 6 months.
Endometrial hyperplasia (~5–10%): thickened uterine lining, sometimes precancerous, often driven by unopposed estrogen.
Endometrial cancer (~9–10%): the reason every case is evaluated.
Cervical or vulvar lesions: including cervical cancer, dysplasia, or genital tract infections.
Medications: anticoagulants, tamoxifen, and certain SSRIs can contribute.

What evaluation looks like

Pelvic exam and pap/cervical screening.
Transvaginal ultrasound to measure the endometrial stripe. A stripe of ≤4 mm has a <1% chance of endometrial cancer; >4 mm requires biopsy.
Endometrial biopsy (in-office, 5 minutes) if indicated.
Hysteroscopy or saline-infusion sonography for polyps.

Treatment depends on the cause

Atrophy responds beautifully to low-dose vaginal estrogen (tablet, ring, or cream). Polyps are removed hysteroscopically. HRT-related bleeding is managed by adjusting the regimen. Hyperplasia is treated with progestin therapy or hysterectomy depending on the subtype. Cancer is treated by gynecologic oncology, usually surgically, with excellent 5-year survival when caught at stage I.

Sources

ACOG Committee Opinion 734 — Postmenopausal Bleeding
NAMS 2022 Hormone Therapy Position Statement
SGO Clinical Practice Statement on Endometrial Cancer Screening

Frequently asked questions

Is any bleeding after menopause normal?

No. Once you have gone 12 consecutive months without a period, any vaginal bleeding is considered postmenopausal bleeding (PMB) and always warrants medical evaluation — even a single episode of spotting.

What is the most common cause of bleeding after menopause?

Vaginal or endometrial atrophy — thinning of the tissue from low estrogen — accounts for roughly 60–70% of cases. Endometrial or cervical polyps, hormone therapy, and endometrial hyperplasia are the next most common causes.

Could bleeding after menopause be cancer?

Approximately 9–10% of postmenopausal bleeding is caused by endometrial cancer, which is why every episode requires prompt evaluation with transvaginal ultrasound and, if the endometrial stripe is greater than 4 mm, an endometrial biopsy.

Can HRT cause a period after menopause?

Yes. Sequential (cyclic) HRT is designed to produce a monthly withdrawal bleed. Continuous combined HRT can cause unpredictable spotting during the first 3–6 months, which typically resolves. Any new bleeding after 6 months on continuous HRT still requires evaluation.

What tests will my clinician order?

Transvaginal ultrasound to measure endometrial thickness, endometrial biopsy if the stripe is >4 mm or bleeding is persistent, and sometimes hysteroscopy or saline-infusion sonography to visualize polyps directly.

When should I go to the ER?

Heavy bleeding soaking a pad per hour for more than two hours, bleeding with severe abdominal pain, or signs of anemia (dizziness, shortness of breath, fainting). Otherwise, book an appointment within the next 1–2 weeks.

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Medically reviewed by Kindr Health Clinical Team · Last reviewed 2026-06-19. Compounded medications are prepared by FDA-registered 503A pharmacies and are not FDA-approved drug products.