The uterus is a pear-shaped muscular organ that contains the developing fetus during pregnancy. It is located in the lower part of the pelvis and is supported by the muscles of pelvic floor.

The ovaries, where eggs are produced, are on both sides of the belly and are connected to the uterus by the fallopian tubes. The lining of the uterus is called the endometrium and the lower part of the uterus is the cervix.

Cancers that start in the cervix act differently than endometrial cancers and are treated in different ways.

It is more common in women over age 40 and is rare in women under 35. Most cancers of the uterus start in the lining of the uterus (endometrium). When diagnosed early, these cancer can be treated successfully.