Any bleeding after menopause is abnormal and warrants evaluation — but not all of it is cancer. Below are the 7 most likely causes, ranked by approximate frequency. The reason to evaluate every episode is simple: the small percentage that ARE cancer benefit enormously from early diagnosis.
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Postmenopausal bleeding causes — Causes by approximate frequency
1. Endometrial atrophy (~40%)
Most common cause — the thinned endometrial lining after menopause occasionally bleeds spontaneously. Diagnosed by ultrasound (thin endometrium) and endometrial biopsy (atrophic tissue). Treatment: vaginal estrogen if symptomatic, observation otherwise.
2. Endometrial polyps (~20%)
Benign growths from the endometrium can bleed intermittently. Diagnosed by ultrasound + hysteroscopy. Treated by hysteroscopic polypectomy — outpatient procedure.
3. Endometrial hyperplasia (~15%)
Thickened endometrium, often related to obesity or unopposed estrogen. Can be precancerous (atypical hyperplasia). Diagnosed by endometrial biopsy. Treatment depends on grade — progestogen therapy or hysterectomy.
4. Endometrial cancer (~10–15%)
Approximately 10–15% of postmenopausal bleeding cases turn out to be endometrial cancer. This is why every episode needs evaluation. Stage 1 disease is highly treatable.
5. Cervical lesions (~5%)
Cervical polyps, ectopy, or rarely cervical cancer. Visible on speculum examination. Cervical screening (Pap smear) should be up to date.
6. Atrophic vaginitis (~5%)
Thinning of vaginal tissues post-menopause causes fragile mucosa that can bleed with friction. Treatment: vaginal estrogen.
7. Hormone therapy / medication effects (~5%)
Postmenopausal hormone therapy, certain anti-coagulants, or breakthrough bleeding on combined HRT can cause vaginal bleeding. Medication review is essential.
Standard investigation pathway
- History and pelvic examination
- Transvaginal ultrasound — measure endometrial thickness (less than 4mm in post-menopausal women is very reassuring; over 4mm or focal abnormality warrants biopsy)
- Endometrial biopsy (office procedure under local anaesthesia)
- Hysteroscopy if biopsy is non-diagnostic or polyps suspected
- MRI or further imaging if cancer is diagnosed
When to act urgently
Heavy bleeding, bleeding with pain, bleeding with fever, or any postmenopausal bleeding in a woman with a strong family history of gynaecological cancers — these warrant prompt evaluation. For other cases, an outpatient appointment within 2 weeks is appropriate.
See postmenopausal bleeding overview, endometrial cancer, 6 warning signs of endometrial cancer.
FAQs
Is one episode of spotting really worth investigating?
Yes. Even a single episode of postmenopausal bleeding warrants evaluation. 10–15% of cases are cancer; early-stage cancer is highly curable.
Will biopsy hurt?
Endometrial biopsy causes brief crampy discomfort lasting 1–2 minutes. Most patients tolerate it well. Pre-medication with NSAIDs helps.
What if biopsy is normal?
If the biopsy is normal but bleeding persists, hysteroscopy with directed biopsy is the next step. Some lesions are focal and missed by blind biopsy.
I'm on HRT — is bleeding normal?
Sequential combined HRT can cause monthly withdrawal bleeding (similar to a period). Continuous combined HRT can cause irregular spotting in the first 6 months. After 12 months on HRT, any bleeding warrants evaluation.
How quickly can I get evaluated?
Most centres offer outpatient appointments within 1–2 weeks for postmenopausal bleeding. Dr. Nishtha’s team offers WhatsApp triage and prompt scheduling.
Consultation and Next Steps
For an individualised consultation on postmenopausal bleeding causes, share your reports on WhatsApp at +91 76988 00333. Dr. Nishtha Tripathi Patel provides a detailed assessment within 24-48 hours and arranges in-person consultation at Sterling Hospitals, KD Hospital, or Welcare Speciality Hospital in Ahmedabad based on your location and treatment requirements.
Bring the following to your first consultation: imaging studies (ultrasound, CT or MRI on CD), histopathology and biopsy reports, tumour marker results (CA-125, HE4, CEA where relevant), a list of current medications, and any prior treatment summaries. For patients travelling from outside Ahmedabad, scheduling can be arranged to complete consultation and any pre-op work-up in the fewest possible visits.
If you are exploring second-opinion options, see our second-opinion service page. Independent review of diagnosis, staging, and proposed treatment plans is provided at no cost via WhatsApp report review. You do not need to switch hospitals to obtain a second opinion.
For broader information about postmenopausal bleeding causes and related conditions, also see our complete ovarian cancer guide, HIPEC India guide, cervical cancer guide and robotic surgery guide.
Reviewed by Dr. Nishtha Tripathi Patel, MBBS, DGO, DNB, Fellowship Gynaecological Oncology, ESGO-certified. To book: WhatsApp +91 76988 00333.