Gynecological Calculators
Tools for gynecological assessment.
Endometrial Thickness Calculator
Assess endometrial thickness based on menopausal status and clinical context.
Reference Information
Postmenopausal Endometrium
- Asymptomatic: A thickness of <5 mm is generally accepted as normal. Some literature suggests up to 8mm may be normal in certain asymptomatic populations, but <5mm is a widely used cutoff to exclude significant pathology.
- With Bleeding: A thickness of >4 mm is considered abnormal and warrants further investigation (e.g., biopsy) to rule out malignancy.
Premenopausal Endometrium
- Menstrual Phase (Days 1-4): 2-4 mm
- Proliferative Phase (Days 5-11): 5-11 mm
- Secretory Phase (Days 12-28): 7-16 mm
Source: Based on established gynecologic imaging guidelines. See for example: Smith-Bindman R, et al. Endovaginal ultrasound to exclude endometrial cancer. JAMA. 1998.
Disclaimer
All calculations must be confirmed before use. The estimated results are not a substitute for clinical judgment.
Neither radiodaddy.org or any other individual, organization or other party involved in the preparation or publication of this website shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any use of or reliance upon the results or values generated by the calculators or other information or materials included on this website. If you are not willing to accept the terms and conditions in the Disclaimer we ask that you do not use this Web Site.