Bleeding after menopause? Why even a few drops of blood should never be ignored
From a gynaecologist’s perspective, every episode deserves evaluation, even when the bleeding is light, occurs only once, or appears after intercourse
Postmenopausal bleeding, defined as any vaginal bleeding after 12 months without menstruation, should always be medically evaluated, as it can be an early indicator of endometrial cancer. While often caused by benign conditions like vaginal atrophy or polyps, the symptom requires prompt attention due to its association with malignancy
Postmenopausal bleeding, defined as any vaginal bleeding after 12 months without menstruation, should always be medically evaluated, as it can be an early indicator of endometrial cancer. While often caused by benign conditions like vaginal atrophy or polyps, the symptom requires prompt attention due to its association with malignancy
Postmenopausal bleeding, defined as any vaginal bleeding after 12 months without menstruation, should always be medically evaluated, as it can be an early indicator of endometrial cancer. While often caused by benign conditions like vaginal atrophy or polyps, the symptom requires prompt attention due to its association with malignancy
A woman who has not menstruated for a year or more may understandably be alarmed to see blood again. Some may assume it is a late or unexpected period, while others may dismiss a small amount of spotting as insignificant. Neither response is advisable.
Postmenopausal bleeding is defined as vaginal bleeding occurring after 12 months without menstruation. From a gynaecologist’s perspective, every episode deserves evaluation, even when the bleeding is light, occurs only once, or appears after intercourse.
The good news is that most women with postmenopausal bleeding do not have cancer. Vaginal and endometrial tissues become thinner after menopause because of declining oestrogen, and this atrophy is a common cause of bleeding. Polyps, infections, cervical changes, medications and hormone replacement therapy can also be responsible.
We take this symptom seriously because it can be the earliest warning sign of endometrial cancer, which starts in the lining of the uterus. The American College of Obstetricians and Gynaecologists states that approximately 90 per cent of women diagnosed with endometrial cancer have experienced postmenopausal bleeding. Its updated guidance, published in April 2026, also notes that 5-12 per cent of cancers may not be detected at the initial presentation when evaluation relies on ultrasound alone.
That update is clinically important. Earlier guidance often allowed transvaginal ultrasound to serve as an initial test when the endometrial lining measured 4 mm or less.
A 2025 systematic review and meta-analysis by Chee and colleagues reassessed this approach in symptomatic postmenopausal women, reflecting the continuing debate about how confidently ultrasound measurements can exclude malignancy.
Current ACOG guidance recommends combining transvaginal ultrasonography with endometrial tissue sampling for the initial evaluation of most patients with postmenopausal bleeding. The precise investigations may differ according to symptoms, risk factors and clinical findings, but the principle remains the same: bleeding after menopause should not be evaluated by appearance alone.
Risk factors matter. Increasing age, obesity, diabetes, exposure to unopposed oestrogen, a history of polycystic ovary syndrome and a family history of certain cancers can increase the likelihood of endometrial pathology. These factors do not mean that bleeding is cancerous, nor does their absence make evaluation unnecessary.
A further point is that the amount of bleeding does not reliably indicate the seriousness of its cause. A few drops of blood can warrant the same clinical attention as heavier bleeding.
The evaluation usually begins with a detailed history and pelvic examination. Depending on the circumstances, a transvaginal ultrasound may assess the uterus and endometrial lining. An endometrial biopsy may be required to examine cells from the uterine lining. Doctors may recommend hysteroscopy, which allows them to look inside the uterine cavity, when bleeding persists or when imaging or biopsy requires further clarification.
Women should therefore seek medical advice promptly if they notice any vaginal bleeding after menopause, including pink or brown discharge, spotting or bleeding after sexual intercourse. Waiting to see whether it happens again can delay diagnosis when an underlying condition needs treatment.
The message is not to panic, but not to normalise the symptom either. Most causes are treatable, and when a serious cause is present, identifying it early can make a significant difference to management.
Menopause marks the end of menstrual cycles, but it should not mark the end of attention to new symptoms. Any unexpected bleeding deserves an explanation.
(The author is a consultant – Gynaecologist, Infertility Specialist, Vaginal & Laparoscopic Surgeon (OBS & Gyn) at HOSMAT Hospitals)
The opinions expressed in this article are those of the author and do not purport to reflect the opinions or views of THE WEEK.