General Information About Endometrial Cancer
Key Points for This Section
Endometrial cancer is a disease in which malignant (cancer) cells form in the tissues of the endometrium.
The endometrium is the lining of the uterus. The uterus is part of the female reproductive system. It is a hollow, pear-shaped, muscular organ in the pelvis, where a fetus grows.
Cancer of the endometrium is different from cancer of the muscle of the uterus, which is called sarcoma of the uterus. See the PDQ summary on Uterine Sarcoma Treatment for more information.
See the following PDQ summaries for more information about endometrial cancer:
Endometrial cancer is the most common invasive cancer of the female reproductive system.
Endometrial cancer is diagnosed most often in postmenopausal women at an average age of 60 years.
Since 1992, the number of white women diagnosed with endometrial cancer has remained stable, but the number of new cases in black women has increased slightly. Endometrial cancer occurs more often in white women than in black women. When endometrial cancer is diagnosed in black women, it is usually more advanced and less likely to be cured. The number of deaths from endometrial cancer has stayed about the same in white women but has increased slightly in black women each year since 1998.