What is the normal endometrial thickness after menopause?
Jul 10, 2025
Source: Cainiu Health
Dr. Zhang Lu
Introduction
In general, an endometrial thickness of no more than 4 mm after menopause falls within the normal range. Postmenopausal women should undergo regular gynecological examinations, including ultrasound scans, to monitor endometrial thickness and morphology. In daily life, it is important to watch for symptoms such as irregular vaginal bleeding or lower abdominal pain, which may be early signs of endometrial pathology.
Generally, a postmenopausal endometrial thickness not exceeding 4 mm falls within the normal range. Detailed analysis is as follows:
Due to ovarian function decline and reduced estrogen levels in postmenopausal women, the endometrium loses the cyclical stimulation of proliferation and shedding, and gradually becomes thinner. At this point, an endometrial thickness not exceeding 4 mm is considered normal. This is because low estrogen levels cannot support endometrial thickening, and a thinner endometrial state reduces the risk of abnormal proliferation or lesions, representing a normal adaptation of the reproductive system to hormonal changes in postmenopausal women. If the thickness exceeds 4 mm, it may indicate abnormalities such as endometrial hyperplasia, polyps, or even cancer, and further examination is needed to determine the cause.
Postmenopausal women should undergo regular gynecological examinations, including ultrasound scans, to monitor endometrial thickness and morphology. In daily life, attention should be paid to symptoms such as irregular vaginal bleeding or lower abdominal pain, which may be early signs of endometrial pathology.
