Postmenopausal vaginal bleeding

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2 studies · 1 recommendation

Last updated: February 25, 2026

Postmenopausal vaginal bleeding – Endometrial Cancer

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Postmenopausal vaginal bleeding warrants prompt evaluation to rule out endometrial cancer

Across 2 diagnostic accuracy studies involving postmenopausal women with uterine bleeding, 36% of cases with thickened endometrium (≥5 mm) were diagnosed with endometrial cancer on histology. Transvaginal power Doppler sonography achieved 78.8% sensitivity and 100% specificity for detecting malignancy, with 97% of carcinomas showing detectable blood flow. Endometrial cancer incidence remains below 1% when endometrial thickness is 4.5 mm or less, but symptomatic women with heterogeneous thickening face significantly higher risk of malignant findings. Early diagnostic evaluation—including ultrasound assessment and biopsy based on individual risk factors—changes the course of neoplastic disease through timely detection. Any postmenopausal vaginal bleeding should prompt medical consultation for endometrial thickness measurement and potential tissue sampling.

Evidence

Engrosamiento endometrial heterogéneo como predictor diagnóstico de patología endometrial, en mujeres postmenopausicas

Authors: Avila Jaimes, Laura Susana, Rivera Murillo, Elizabeth

Published: April 17, 2014

In postmenopausal women with uterine bleeding (HUA), heterogeneous endometrial thickening on ultrasound predicted malignant histological findings. The American Cancer Society 2010 guidelines note that endometrial cancer incidence does not exceed 1% when endometrial thickness is 4.5 mm or less. Biopsy decision depends on individual risk factor assessment and ultrasound findings, with two distinct risk groups identified: asymptomatic women and those with bleeding. Early diagnostic evaluation in symptomatic postmenopausal women changes the course of neoplastic disease through timely detection.

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Endometrial blood flow mapping using transvaginal power Doppler sonography in women with postmenopausal bleeding and thickened endometrium

Authors: Alcazar, J.L. (Juan Luis), Castillo, G. (G.), Galan, M.J. (M. J.), Minguez, J.A. (J.A.)

Published: January 1, 2003

In a prospective study of 91 postmenopausal women (median age 58, range 47–83) presenting with uterine bleeding and thickened endometrium (≥5 mm double-layer thickness), 33 of 91 cases (36%) were diagnosed with endometrial cancer on histology. The remaining diagnoses were endometrial polyp (37 cases, 41%), endometrial hyperplasia (14 cases, 15%), and endometrial cystic atrophy (7 cases, 8%). Transvaginal power Doppler sonography achieved 78.8% sensitivity and 100% specificity for detecting endometrial cancer among these symptomatic women, with 97% of carcinomas showing detectable blood flow and 81.3% of vascularized cancers displaying a multiple-vessel pattern.

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