Can Your Uterine Lining Be Too Thick

When the endometrium, the lining of the uterus, becomes too thick, it is called endometrial hyperplasia. This condition is not cancer, but in some cases, it can lead to cancer of the uterus.

What happens if your uterus lining is too thick?

Endometrial hyperplasia thickens the uterus lining, causing heavy or abnormal bleeding. Atypical endometrial hyperplasia raises the risk of endometrial cancer and uterine cancer. The condition tends to occur during or after menopause.

How thick is too thick endometrial lining?

An 11-mm threshold yields a similar separation between those who are at high risk and those who are at low risk for endometrial cancer. In postmenopausal women without vaginal bleeding, the risk of cancer is approximately 6.7% if the endometrium is thick (> 11 mm) and 0.002% if the endometrium is thin (< or = 11 mm).