Postmenopausal bleeding

Postmenopausal bleeding is defined as any vaginal bleeding occurring after 12 consecutive months of amenorrhea (no periods) in a woman of menopausal age. It is considered abnormal and always warrants medical evaluation, as it may signal benign causes but also serious conditions such as endometrial cancer.

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Possible Causes

• Atrophic changes

  • Vaginal atrophy (thinning of vaginal tissues due to low estrogen)

  • Endometrial atrophy

• Benign growths

  • Endometrial polyps

  • Uterine fibroids (less common after menopause)

• Hormonal therapy-related

  • Bleeding associated with hormone replacement therapy (HRT)

• Medications

  • Tamoxifen (used in breast cancer treatment)

• Infections

  • Vaginitis or endometritis

• Malignancies (serious causes)

  • Endometrial carcinoma

  • Cervical cancer

  • Ovarian cancer (less common, but possible)

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Symptoms Associated

• Light spotting or heavy bleeding after menopause

• Pink, brown, or bright red discharge

• Pelvic pain or bloating (in some cases)

• Weight loss or fatigue (if cancer is advanced)

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Evaluation

A woman presenting with postmenopausal bleeding should undergo:

• History & physical examination

• Speculum and pelvic exam

• Transvaginal ultrasound – measures endometrial thickness (≥4–5 mm is concerning)

• Endometrial biopsy – gold standard for diagnosing endometrial hyperplasia or carcinoma

• Pap smear / HPV test – to rule out cervical causes

• Hysteroscopy – if ultrasound/biopsy are inconclusive

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Treatment (based on cause)

• Atrophic vaginitis/atrophy → Vaginal estrogen creams, lubricants, moisturizers

• Endometrial polyps/fibroids → Hysteroscopic removal or surgery if symptomatic

• Hormone therapy related → Adjust or stop therapy, switch regimen

• Infections → Antibiotics or antifungals as appropriate

• Endometrial hyperplasia (precancerous) → Progestins (oral, intrauterine device)

• Malignancy (endometrial or cervical cancer) → Surgery (hysterectomy), radiotherapy, chemotherapy depending on stage

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When to Seek Urgent Medical Help

• Any episode of vaginal bleeding after menopause

• Heavy bleeding, passage of clots

• Associated pelvic pain or abdominal swelling

• Family history of gynecological cancers