The endometrium is the tissue forming the inner lining of the uterus. Uterine cancer (also called endometrial cancer) develops when the cells of the endometrium become abnormal and grow uncontrollably. It is a common type of cancer among women and generally occurs in women who have gone through menopause and are 45 years old or older.

The uterus (also called the womb) is the hollow female organ that supports the development and nourishment of the unborn baby during pregnancy. It has a thick muscular wall and an inner lining called the endometrium. The endometrium is very sensitive to hormones and it changes daily during the woman's menstrual cycle. It is designed to provide an ideal environment for the fertilized egg to implant itself and begin to grow. If pregnancy does not occur, the endometrium is shed at the time of the menstrual period. The bleeding that occurs...