Recent Journal Updates

PLOS MedicineJun 2, 2026

Prognostic value of cervical length for spontaneous preterm birth in asymptomatic women with singleton pregnancy: An individual participant data meta-analysis

Clinical Context

We think this has broad domain relevance to Endometrial Thickness.

BJOGMay 19, 2026

Microbial and Metabolic Correlates of Endometrial Dysfunction in Polycystic Ovary Syndrome: A Translational Study

Clinical Context

We think this might be relevant to the clinical guidance for Endometrial Thickness.

BJOGMay 16, 2026

Comparison of Total Laparoscopic Hysterectomy and Total Abdominal Hysterectomy in Endometrial Cancer: A Retrospective Single‐Centre Cohort Study

Clinical Context

We think this might be relevant to the clinical guidance for Endometrial Thickness.

Endometrial Thickness

Endometrial Thickness Index

Standardized Clinical Cut-offs

Postmenopausal (ACOG/SOGC)

Normal Threshold≤ 4 mm

High negative predictive value for cancer

Suspicious / Action> 4 mm

Requires biopsy/histology if bleeding

Asymptomatic (No PMB)> 11 mm

May require biopsy even without bleeding

Premenopausal Reference

Menstrual Phase2–4 mm

Proliferative Phase4–8 mm

Periovulatory8–11 mm

Secretory Phase7–16 mm

Clinical Ref: For postmenopausal patients, the measurement of endometrial thickness is most accurate when taken in the midline sagittal plane, excluding any small pockets of fluid.

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Primary Clinical Uses

Triage and risk stratification for postmenopausal bleeding (PMB)

Determining the necessity for invasive endometrial sampling (biopsy or hysteroscopy)

Evaluating asymptomatic thickened endometrium found incidentally on imaging

When NOT to Use

Absolute thickness is a poor standalone screening tool for asymptomatic postmenopausal women. Routine screening for endometrial cancer using ultrasound is explicitly NOT recommended by ACOG or SGO in the absence of bleeding.

Last Comprehensive Review: 2026

Recent Journal Updates

PLOS MedicineJun 2, 2026

Prognostic value of cervical length for spontaneous preterm birth in asymptomatic women with singleton pregnancy: An individual participant data meta-analysis

Clinical Context

We think this has broad domain relevance to Endometrial Thickness.

BJOGMay 19, 2026

Microbial and Metabolic Correlates of Endometrial Dysfunction in Polycystic Ovary Syndrome: A Translational Study

Clinical Context

We think this might be relevant to the clinical guidance for Endometrial Thickness.

BJOGMay 16, 2026

Comparison of Total Laparoscopic Hysterectomy and Total Abdominal Hysterectomy in Endometrial Cancer: A Retrospective Single‐Centre Cohort Study

Clinical Context

We think this might be relevant to the clinical guidance for Endometrial Thickness.